When the external pressure on a balloon is decreased at constant temperature, what happens to the gas inside?
A) The collisions become more elastic.
B) The gas undergoes no changes.
C) The volume increases.
D) The molecules increase in rate of movement.
E) The volume decreases.

Question

Quizplus · Accepted Answer

When the external pressure on a balloon is decreased at constant temperature, the volume of the gas inside the balloon increases. This is because the pressure exerted by the gas molecules inside the balloon is now greater than the external pressure, causing the balloon to expand in order to decrease the pressure inside the balloon back to equilibrium with the external pressure.

When the External Pressure on a Balloon Is Decreased at Constant