KMT

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

Select all that apply

• Gas particles move in circular orbits

• Most of the volume of gas is empty space
• Gas particles are in constant random motion

• Gas particles attract each other
• Gas particles are dimensionless

The nature of gases state that gases will _____ space available to them.

• repel

• fill

• give

• move

True or false? When gas molecules collide, they are called elastic collisions.

• true

• false

Gases can be compressed.

• True

• False

• Flask 1 contain the most molecules
• Flask 2 contain the most molecules
• Flask 3 contain the most molecules
• Flask 4 contain the most molecules

The average _______ energy of all the particles determines the temperature of the gas.

• potential

• kinetic

• chemical

• mechanical

When any kind of gas such, as nitrogen or carbon dioxide, is heated, it

• sublimates.

• evaporates

• explodes

• expands

All gases have _______.

• volume

• density

• mass

• oxygen

As the temperature of a substance increases:

• The speed, and average kinetic energy of the particles, both increase.

• The speed, and average kinetic energy of the particles, both decrease.

• The speed of the particles increases, but the average kinetic energy of the particles decreases.

• The speed of the particles decreases, but the average kinetic energy of the particles increases.

Particles move ____ as the temperature increases.

• faster

• slower