Pressure

Question 1

What s the source of pressure in a gas?

Answer 1

Collisions of gas molecules with walls of a container, gas molecules are exerting force on wall.

Question 2

As the number of molecules increases, __________ and thus, _________ increases.

Answer 2

so does the number of collisions ; pressure

Question 3

If average velocity of the molecules is higher, ____________

Answer 3

The gas pressure is higher