KMT

Question 1

First postulate

Answer 1

Gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant, random motion.

Question 2

Second postulate

Answer 2

These particles move in a straight line until they collide with another particle or the walls of the container.

Question 3

Third postulate

Answer 3

These particles are much smaller than the distance between particles. Most of the volume of a gas is therefore empty space.

Question 4

Fourth postulate

Answer 4

There is no force of attraction between gas particles or between the particles and the walls of the container.

Question 5

Fifth postulate

Answer 5

Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container.

Question 6

Sixth postulate

Answer 6

The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.