Chapter 11a Gas Laws IChapter 11a Gas Laws I

According to the kinetic molecular theory, the kinetic energy of a gas depends on

• temperature and pressure

The kinetic-molecular theory states that gas particles are

very far apart. What properties of a gas does this

idea explain?

the fluidity and compressibility

True or falseTrue or false

• According to the kinetic-molecular theory, particles of a gas collide?

• According to the kinetic-molecular theory, particles gain and lose energy after an elastic collision?

• According to the kinetic-molecular theory, particles of a gas attract each other?

• According to the kinetic-molecular theory, particles of a gas repel each other?

• According to the kinetic-molecular theory, particles of a gas collide?

• According to the kinetic-molecular theory, particles gain and lose energy after an elastic collision?

• According to the kinetic-molecular theory, particles of a gas attract each other?

• According to the kinetic-molecular theory, particles of a gas repel each other?

Gas particles neither attract nor repel each other, but they do collide in a elastic collision. Elastic Collisions result in NO net loss of energy.

TrueFalseFalseFalse

Which substance has the lowest density, liquid water, gases water, or solid water?

H2O(g)

A pressure of 700. kPa is equal to

_____ mm Hg.

700. kPa * __1 atm_ * 760 mmHg = 101.3kPa 1 atm

5250.

The average atmospheric pressure in Denver is 0.830 atm.

What is this pressure in kPa?

0.830atm * 101.3kPa = 84.1atm 1 atm

If the temperature remains constant, V1 and P1 represent the original volume and

pressure, and V2 and P2 represent the new volume and pressure, what is the

mathematical expression for Boyle’s law?

P1V1 = P2V2

Knowing the mass and volume of a gas at STP allows one to

calculate the

molar mass of the gas

molar volume of any gas at standard temperature and

pressure (STP)

22.4L/mol

The principle that under similar pressures and temperatures, equal volumes of gases contain the same number of molecules is attributed to

Avogadro

Gay-Lussac recognized that the pressure of a fixed mass of gas at

constant volume is directly proportional to the Kelvin

temperature. Mathematically, Gay-Lussac’s law is expressed as

Gay-Lussac recognized that the pressure of a fixed mass of gas at

constant volume is directly proportional to the Kelvin

temperature. Mathematically, Gay-Lussac’s law is expressed as

P = k T P = k T

Who developed the concept that the total pressure of a mixture of gases is the sum of their partial

pressures?

Dalton

What happens to temperature during the compression of a

gas? 

In terms of pressure describe why?

pressure and temperature are directly proportional .

The temperature rapidly increases

The values for the standard temperature

and pressure (STP) are

P = 1 atmosphere, 760 torr T = 0°C, 273 Kelvins

Convert a pressure of 1.75 atm to kPa and to mm Hg.

Convert a pressure of 570. torr to atmospheres and to kPa.

Convert a pressure of 550 mm of Hg into atm and Pa

Convert a pressure of 150. KPa to mm of Hg and atm

Convert each of the following Celsius temperatures to Kelvin

temperatures 0.°C 27°C -75.°C -310°C.

Know how to solve gas law problems using the combined gas law.

& Partial Pressure

The End!The End!The End!The End!The End!The End!