Question

A sealed container contains nitrogen gas. The pressure of the gas is due to the molecules of
the gas hitting the walls of the container
Use the kinetic theory to explain why the pressure inside the container increases when the
temperature is increased.
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Answer 1

When you heat a gas its particle will move faster and collide with the walls of the container with more force. Its volume has increased.

(even i got this question in my exam and i got full marks for this question)

All the best

Answer 2

Hello, This is because, as the temperature rises, the speed of the motion of the particles increase making them hit the walls more frequently. Temperature and pressure are directly proportional which means as temperature rises, pressure rises and vice versa. This is the best explanation when considering kinetic theory which states that particles are constantly in motion