Kinetic Molecular Theory of Gases

Gas Laws

Multiple Choice

Which of the following is an assumption of the kinetic-molecular theory of gases?

• Collisions between gas particles are inelastic.

• Gases consist of closely spaced particles.

• Gas particles move around in an orderly manner.

• The temperature of a gas depends on the average kinetic energy of the gas particles.

Multiple Choice

These properties describe a ___.

• solid

• liquid

• gas

Multiple Choice

These properties describe a ___.

• solid

• liquid

• gas

Multiple Choice

These properties describe a ___.

• solid

• liquid

• gas

Multiple Choice

How many mm Hg is a pressure of 1.05 atm?

• 529 mm Hg

• 798 mm Hg

• 104.8 mm Hg

• 760 mm Hg

Multiple Choice

What does STP (standard temperature and pressure) stand for?

• 0.0 degree Celcius and 1 atm

• 1.0 mmHg and 273 degree Kelvin

• 1.0 degree Celcius and 0 atm

• 1.0 atm 273 degree Celcius

Multiple Choice

A gas is at a pressure of 95 kPa. What is its pressure in atmospheres?

• 1.5 atm

• 1.09 atm

• 0.94 atm

• 0.82 atm

Multiple Choice

760 mmHg is equal to

• 1 torr

• 760 atm

• 760 torr

• 101 Pa

Multiple Choice

Which of the follow is NOT equal to 1 atm?

• 14.7 psi

• 760 mmHg

• 101325 Pa

• 101.325 torr

Multiple Choice

Solids are described as having a

• definite shape and indefinite volume

• indefinite shape and indefinite volume

• definite shape and definite volume

• indefinite shape and definite volume

Multiple Choice

Of these three states of matter, which one has the most kinetic energy?

• Solid

• Liquid

• Gas

Multiple Select

The properties of liquids include (SELECT ALL THAT APPLY)

• definite volume

• take the shape of the container

• can flow

• are relatively incompressible

• can diffuse and have surfacre tension

Multiple Select

According to the Kinetic Molecular Theory a liquid's (SELECT ALL THAT APPLY)

• particles are held close together by intermolecular forces

• particles are in constant motion

• particles are vibrating in place and closely packed

• particles are not moving

Multiple Choice

• Flask 1 contain the most molecules

• Flask 2 contain the most molecules

• Flask 3 contain the most molecules

• Flask 4 contain the most molecules

Multiple Choice

Gas pressure is caused by

• gas molecules colliding with surfaces

• gas molecules condensing to a liquid

• gas molecules hitting other gas molecule

• barometers

Multiple Choice

Convert: -45.9 C to K:

• 227.1 K

• 400 K

• 0 K

  373 K

Multiple Choice

Convert: 186.5 K to C

• -86.4 C

• -50 C

• -68.4 C

• 180 K

Multiple Choice

Convert: 0 K to C

• -273 C

• -273 K

• 273 C

• 273 K

Multiple Choice

Convert: 253 C to K:

• 526 K

• 625 K

• 0 K

• 186 K

Multiple Choice

Select the temperature in °C

• 50°C

• 10°C

• 20°C

• 60°C

Multiple Choice

Select the temperature in °C

• 30°C

• 100°C

• 90°C

• 40°C

Multiple Choice

The faster molecules move,

• the higher the temperature

• the less temperature

• the same temperature

• I don't know

Multiple Choice

The absolute coldest anything can get.

In Celsius it's at 273 degrees. Or 0 degrees Kelvin.

• Absolute cold

• Kelvin

• Absolute zero

• I don't know

Multiple Choice

Scientists' favorite temperature scale, because it begins at the absolute coldest anything can get.

• Celsius

• Fahrenheit

• Kelvin

• All of them

Multiple Choice

Which direction is heat flowing in the picture?

• from the hand to the ice

• from the ice to the hand

• heat is not being transferred

• there is no way to tell

Multiple Choice

The measure of average kinetic energy of all the particles within an object is called ____________.

• temperature

• conduction

• radiation

• heat

Multiple Choice

In nature, heat always flows from a:

• cold object to a warm object.

• small object to a big object.

• warm object to a cold object.

• large object to a small object.