What must happen for carbon dioxide to sublimate at a given pressure ?

Answers

Answer 1

Answer:

If the pressure is reduced on the solid carbon dioxide the temperature will drop and the liquid carbon dioxide will solidify into snow-like substance.

Explanation:


Related Questions

When an automobile engine burns gasoline, what are the energy conversions? (Hint: there are three.)

Answers

Answer:

The release of energy from fuels is used to make other forms of

energy. When gasoline burns in a car engine, some of the

chemical energy in the gasoline is converted into heat. The heat

is converted into mechanical energy. The mechanical energy

moves the car .

if you know that I am right please mark it as brainliest

Answer:

It is asking for 3 energy conversions like Mechanical energy is one of them

Explanation:

can you treat a sulfuric acid burn with sodium hydroxide

Answers

Answer:

I think yes

Explanation:

sorry i havent done these type a questions in a while

How many half-lives of time have passed when only a little more than 3% of a sample
original C-14 remains?

Answers

Answer:

5.06 half lives

Explanation:

1/2 ^n  = .03             (.03 is 3% in decimal)

                         log both sides

n log 1/2 = log .03

n = 5.06  half lives

please ill mark u brilliant
+ 10 points

Answers

Sodium fluoride has a high melting point due to hydrogen bonding in it's aqueous solution and in it's free state the fluoride ions being smaller are closely packed so NaF has a higher inter ionic attraction between Na+ and F-

Read more on Brainly.in - https://brainly.in/question/15890904#readmore

how many principal energy levels are there

Answers

Answer:

There is an infinite number of Principal Energy Levels, see the answer for a full explanation

Explanation:

As stated above There is an Infinite number of principal energy levels, yet there are 4 main principles for principal energy; energy levels, sublevel, orbitals, and a number of electrons per sublevel.

please answer ................

Answers

Answer:

Explanation:

i. SO2

ii. Na2O

calculate the mass of 3.5 moles of copper sulphate

Answers

Answer: 558.5545 g

Explanation:

The formula for a sulphate ion is [tex]\text{SO}_{4}^{\text{ }2-}[/tex], so the formula for copper sulphate is [tex]\text{CuSO}_{4}[/tex].

The atomic mass of copper is 63.546 g/mol.The atomic mass of sulfur is 32.065 g/mol.The atomic mass of oxygen is 15.994 g/mol.

This means the formula mass of copper sulphate is:

63.546+32.065+4(15.994)=159.587 g/mol.

So, in 3.5 moles, the mass is (159.587)(3.5)=558.5545 g

Would the following be an example of a physical or a chemical change?
- Methane (natural gas) is combined with oxygen to produce heat.
Select one:
a. chemical
b. physical
c. neither

Answers

it is chemical change because chemical change occur when bonds are broken or formed between molecules or atoms.

Which of the following is true for the equilibrium constant of a reaction? (5 pc
OIts value remains constant at different temperatures.
It is a ratio of coefficients of reactants to products.
It is represented by the symbol K.
Its value is always less than 1.

Answers

The equilibrium constant of the reaction is represented by the symbol K. Thus, option C is the correct and accurate statement about the equilibrium constant.

What is the equilibrium constant?

The equilibrium constant is a representation of the concentration of the products and the reactants of the reaction that is raised to the powers through their stoichiometry coefficient.

Its value varies and changes at different temperatures and is not always less than 1. The equilibrium constant is the ratio of the coefficient of the products to reactants.

Therefore, option C. equilibrium constant is represented by K is true.

Learn more about the equilibrium constant here:

https://brainly.com/question/12429748

#SPJ1

A balloon containing 0.500 mol ar at 0.00°c and 65.0 kpa pressure is expanded by adding more argon. formula: pv = nrt (r = 8.317 l•kpa/mol•k) what is the original volume of the gas? l

Answers

The original volume of the gas would be 17.45 L.

Ideal gas equation

For an ideal gas:

  PV = nRT, where P = pressure, V= volume, n = number of moles, T=temperature, and R = constant = 8.317 l•kpa/mol•k

In this case, n = 0.500 mole, T = 273K, P = 65.0 kpa.

Thus:              V = nRT/P = 0.5 x 8.317 x 273/65 = 17.45 L

More on ideal gas can be found here: https://brainly.com/question/8711877

#SPJ1

2.58g of a gas has a volume of 3.97L at 745 mmHg and 21°C determine the molar mass of the gas what might be? ( first find n from the ideal gas law equation; then plug it into N = m/M or M = m/n)

Answers

The molar mass of the gas with the given mass and volume at the given temperature and pressure is 16.00g/mol.

What is the molar mass of the gas?

From the Ideal gas law or general gas equation;

PV = nRT

Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant ( 0.08206 Latm/molK )

Given that;

Temperature T = 21°C = (21 + 273.15)K = 294.15KPressure P = 745 mmHg = (745/760)atm = 0.98026atmVolume of the gas V = 3.97LMass of gas m = 2.58gAmount of gas n = ?

First, we determine the amount of gas;

PV = nRT

n = PV / RT

n = ( 0.98026atm × 3.97L ) / ( 0.08206 Latm/molK × 294.15K )

n = 3.8916Latm / (24.137949Latm/mol)

n = 0.1612mol

Molar Mass = Mass of the gas / Amount of the gas

Molar Mass = m / n

Molar Mass = 2.58g / 0.1612mol

Molar Mass = 16.00g/mol

Therefore, the molar mass of the gas with the given mass and volume at the given temperature and pressure is 16.00g/mol.

Learn more about ideal gases here: brainly.com/question/15634266

#SPJ1

A gas has a volume of 0.550 l at a temperature of -55.0 c. what will the volume be if the temperature is increased to 30.0 c and the pressure remains constant?

Answers

Gay-Lussac's law: [tex]\frac{V1}{T1}[/tex]=[tex]\frac{V2}{T2}[/tex]

We need to convert temperature from Celsius to Kelvin

-55 C = 218 K

30 C = 303 K

V2 = V1*T2 / T1 = 0.550 *303 / 218 = 0.764 l

What is the correct formula for Triphosphorous hexachloride?

Answers

Answer:

P3

Explanation:

Im pretty sure hope this helps

Somebody please help meeeeeeeeee!! (The question is underneath the table)

Answers

Answer:

1.)

Parent 1:
   Ff (genotype) and free earlobes (phenotype)

Parent 2:
   ff (genotype) and attached earlobes (phenotype)

2.)

Ff and ff (possible genotypes)

Free earlobes and attached earlobes (possible phenotypes)

Explanation:

Phenotypes are the observable traits an organism displays.

Genotypes are the genetic sequences organisms' possess that code for particular traits.

I am assuming that heterozygous individuals (Ff) display the dominant trait (free earlobes). As such, one parent has the Ff genotype and the free earlobe phenotype. The other parent has the recessive genotype (ff) and phenotype (attached earlobe).

50% of the children will have the same genotype and phenotype of one parent and the other 50% will have the same genotype and phenotype as the other parent.

None of the children will have the completely dominant genotype (FF).

How many
particles would
be found in a
2.74 g sample of
Beryllium sulfide?

Answers

Answer:

4.03 × 10²² particles of beryllium sulfide.

Explanation:

The formula to find the number of particles is:

Number of particles/atoms = number of moles × (6.02 × 10²³)

6.02 × 10²³ = Avogadro's number

But first, we will have to find the number of moles. This can be found using the formula:

Number of moles = mass ÷ Mr

  Mr of BeS = 9 + 32.1 = 41.1

  Number of moles = 2.74 ÷ 41.1 = 0.067 mol

Now that we know the number of moles, we can find the number of particles.

   Number of particles = 0.067 × 6.02 × 10²³

∴ Number of particles =  4.03 × 10²²

Answer:

4.03 × 10²² particles

Explanation:

Had the same question and got it correct.

The pH of a solution is 0.50. To two decimal places, what is the hydrogen ion concentration of that solution

Answers

Explanation:

pH= –log¹⁰[H+]

0.50= –log¹⁰[H+]

log¹⁰[H+]=0.50

take the antilog of 0.50

[H+]= 3.16moldm-³

Generally, what is the effect of increased temperature on the rate of dissolution of a solid solute?

Answers

Answer:

Increases

Explanation:

The general effect we see as temperature increases is that rate of dissolution of a solid solute increases,

Therefore, we can say that :

Temperature ∝ Rate of dissolution

moles
5.
A mixture of gases at a total pressure of 105 kPa contains N2, CO2, and O2. The partial pressure of the O2 is 21 kPa and the
partial pressure of the N₂ is 81 kPa. What is the partial pressure of the CO₂? (3 pts)

Answers

Answer:

the daddy and Video Bhai have a

Explanation:

for and or for the if or as or as there have no a of option to go with you 6th and I would love from you to help out in any event that I am from the only reason you would be so close and to me million times is the fact I am from the the only reason you have to do it the way I want it is the best way for us and we are not me million people that are not got to me it's not like they were in a bad place and they didn't want me million other people in my world who made me think about you are

Which is one possible way that animals would most likely be affected by this action?

Some animals would adapt.
Some animals would go extinct.
Some animals would evolve.
Some animals would be forced to migrate.

Answers

Some animals would be forced to migrate due to cutting of forest , Option D is the correct answer.

The complete question is

Humans clear-cut a forest. Which is one possible way that animals would most likely be affected by this action? Some animals would adapt. Some animals would go extinct. Some animals would evolve. Some animals would be forced to migrate.

What is deforestation ?

Deforestation means cutting down trees of the forest for wood , or for making more space for living.

Deforestation leads to destruction of habitats of animals .

The balance of the nature gets disturbed , the sea and water bodies get dried up , leading to no water for the animals in the forest.

Animals need big bushes and trees to hide and live.

The Ecosystem gets destroyed because of the cutting of trees by human and so this has lead the animals to migrate.

Therefore Option D is the correct answer.

To Know more about Deforestation

https://brainly.com/question/17178423

#SPJ1

Part g
consider the melting points of sugar and salt, as well as the states of sugar, salt, and oil
at room temperature. what can you conclude about the attractive forces between
particles in the three substances?

Answers

Salt and sugar have strong attractive forces whereas oil has weak attractive forces between particles.

What type of attractive forces present in salt, sugar and oil?

The attractive forces between particles in the salt and sugar substances have strong because of its solid state while on the other hand, the attractive force between particles of oil is weak because of its liquid state.

So we can conclude that salt and sugar have strong attractive forces whereas oil has weak attractive forces between particles.

Learn more about force here: https://brainly.com/question/12970081

#SPJ1

The strength of the attractive forces between the molecule of oil, sugar and salt increases from oil to sugar to salt.

What is melting point of a substance?

The melting point of a substance is the temperature at which the solid substance melts.

The melting point of a substance is a constant for a pure substance.

The higher the attractive forces between the molecules of a substance, the higher the melting point will be.

Between the three substances, oil has the lowest melting point while salt has the highest melting point.

Therefore, the strength of the attractive forces between the molecule of oil, sugar and salt increases from oil to sugar to salt.

Learn more about melting point at: https://brainly.com/question/40140

#SPJ1

In general the formation of a chemical bond lowers the _____ energy of a chemical system, leading to a _____ stable arrangement.

Answers

In general, the formation of a chemical bond lowers the potential energy of a chemical system, leading to a more stable arrangement.

What is potential energy?

Stored energy depends upon the relative position of various parts of a system.

In bond formation, atoms lose their potential energy to attain stability and heat is evolved. The bond formation is an exothermic reaction.

Atoms bond together to form compounds to attain lower energies than they possess as individual atoms.

A quantity of energy is equal to the difference between the energies of the bonded atoms and the energies of the broken atoms.

Learn more about the potential energy here:

https://brainly.com/question/24284560

#SPJ1

Why is the spectrum from our sun a combination of spectral types?.

Answers

If you let the light from the Sun pass through a prism, the result is a wonderful display of all the colors of the rainbow. Separating the combined colors of the Sun like this gives you a "spectrum", which is just a measure of light emission as a function of energy (or wavelength, or frequency, which are all related).

The price of a gallon of almond milk increases from $5 to $10, so people start buying more oat milk as an alternative. this causes a shift to the left in the demand for almond milk. demand for almond milk ____________ because of a change in ___________.

Answers

The demand for almond milk decreases because of a change in price from $5 to $10. Details about demand can be found below.

What is demand?

Demand refers to the amount of goods a consumer is willing and able to buy at a given price and at a particular time.

Several factors can affect the demand of a particular good. According to this question, the price of a gallon of almond milk increases from $5 to $10, so people start buying more oat milk as an alternative.

Therefore, it can be said that the demand for almond milk decreases because of a change in price from $5 to $10.

Learn more about demand at: https://brainly.com/question/14741584

#SPJ1

Answer:

decreased:related goods

Explanation:

ik it seems like decreased:income but i just took the test twice and ik for a fact its c not d

20.4 L of 0.650 M HCI reacts with 36L of KOH solution of unknown concentration. What is the molarity of the KOH solution?

Answers

Answer: 0.37 M

Explanation:

[tex]M_{A}V_{A}=M_{B}V_{B}\\(20.4)(0.650)=M_{B}(36)\\M_{B}=\frac{(20.4)(0.650)}{36}=\boxed{0.37 \text{ M}}[/tex]

Almost All of the Energy reaching the Earth from the sun is in the form of ________.​

Answers

Answer:

solar radiation

Explanation:

On a summer day, you take a road trip through Death valley, california in an antique car.you start put at a temperature of 20*c, but the temperature in death valley will reach a peak of 51*c. The tires on your car can hold 15.6L of nitrogen gas at a starting pressure of 249 kPa the tires will burst wjen internal pressure (PB) reaches 269k kPa awnser the following queshtions and show your work
- how many moles of nitrogen gas are in each tire

Answers

The number of moles of nitrogen gas in each tire would be 1.595 moles

Ideal gas law

The ideal gas law is represented by the equation:

PV = nRT where P = pressure, V = volume, n = number of moles of gas, R = constant, and T = temperature.

In this case, P = 249 kpa, V = 15.6 L, R = 8.31, and T = 293 K (273 + 20).

n = PV/RT = 249 x 15.6/8.31 x 293 = 1.595 moles

More on ideal gas can be found here: https://brainly.com/question/8711877

#SPJ1

What is the nuclear equation for decay of Am - 241

Answers

Americium is a radioactive element .

It goes through alpha decay during nuclear reactions .

The nuclear reaction.is given by

[tex]\rm {}^{241}_{95}Am\longrightarrow {}^{237}_{93}Np+{}^4_2\alpha[/tex]

Np stands for Nuptunium

Here alpha can be written as He too

Describe the overall enthalpy of the chemical reactants compared to the enthalpy of the chemical products in the combustion of propane.

Answers

Answer:

A thermochemical equation for the combustion of propane (C3H8)(C3H8) is written as follows:

C3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔH∘rxnC3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔHrxn∘ = -2202.0 kJ/mol

The value given for ΔH∘rxnΔHrxn∘ means that:

a. the reaction of one mole of propane absorbs 2202 kJ of energy from the surroundings.

b. the reaction is endothermic.

c. the enthalpy of formation of propane is 2202 kJ/mol.

d. the reaction of one mole of propane releases 2202 kJ of energy to the surroundings.

e. None of these.

The use of lead paint in houses was banned in 1978 due to the health hazards associated with lead, specifically that
high levels of lead exposure is dangerous to humans. which branch of chemistry would study this?

Answers

Toxicology is the branch which studies about toxic chemicals and their effects.

What is Toxicology ?

Toxicology is the branch in science in which the researches and study are done for finding the effect of the toxic  or poisonous elements on plants , animals , human and earth at large.

High levels of lead exposure is dangerous to humans as it can cause permanent disabilities , it is carcinogenic and hence can lead to death.

This is studied in toxicology.

To know more about Toxicology

https://brainly.com/question/5020436

#SPJ1

What's reaction kinetics?

Answers

Answer: a branch of chemistry concerned with the rate of chemical reactions, the factors that influence these rates, and the use of rate studies to clarify reaction mechanisms

Other Questions
In an examination, Musa got 7 marksmore than Emmanuel. If Emmanuelhad 25 marks and Faith had 1/4 ofMusa's mark more than Emmanuel'smark, what is the score of Faith Help me pleaseeee. Which is the largest ocean on the world? how much it occupied? describe the events surrounding Israel's declaration of Independence in 1948? When can a 19-year old legally serve alcoholic beverages in a restaurant?. How do the stage directions in brackets affect the meaning of the text?They show that Nora goes from playing happily with her children to being startled by Krogstad, an unwelcome visitor.They show that Nora, the children, and Krogstad are on the stage at the same time and are communicating with one another.They show that Nora has to take care of her children without the help of her husband, Torvald, and resents it greatly.They show that Krogstad is familiar to the family and is a frequent visitor, so he can walk in without knocking Which graph represents the function f(x))=2(1/3)^x Using data from 1996 to 1998, the annual number of cars sold at a certain dealership can be modeled by the formula y = 4x + 2. Where y is the number of cars in thousands sold x years after 1996. According to this form line in which years will be the number of car sold exceed 46,000 Help with my study guide only answer topic 7 problem A The companys ceo is very stingy with money. ""stingy"" has a negative connotation. please select the best answer from the choices provided t f For the polynomial function, find the requested value: f (x) = 10x2 4x 5; f (2) Which conclusion can be drawn from this newspaper advertisement? Which SI units are used to describe energy There are lots of problems we face on our planet. for each photo write two sentences. state what the problem is and why or how it happens. then tell what can be done to solve it in french. HELPPPPP PLEASEEEEEE Human interest stories usually focus on:OA. celebrities and politicians.OB. a worldwide catastrophic event.OC. animals in danger.D. people's triumphs and struggles. what kind of intermolecular force is H2O What is the answer for this question __ hundreds= 90 tens Discuss the 3 most important lessons you learned in this class. explain why they were so meaningful? how will critical thinking help you "realize potential-the ultimate objective"? You are a for-hire motor carrier. Subpart A requires you to maintain a minimum level of financialresponsibility when transporting any quantity of what type of material in intrastate commerce?A. All hazardous materialB. Class 7 materialC. Division 1.2 explosive materialD. Nonbulk oil E. Nonbulk hazardous materials InnumeracyWhat is the purpose of the book? How is it organized?