When a gas in a cylinder is compressed at constant temperature by a piston, the pressure of the gas increases. Consider the following three statements.
a) The rate at which the molecules collide with the piston increases
b) The average speed of the molecules increases
c) The molecules collide with each other more often
Which statement(s) correctly explain the increase in pressure?

Question

When a gas in a cylinder is compressed at constant temperature by a piston, the pressure of the gas increases. Consider the following three statements.

a) The rate at which the molecules collide with the piston increases

b) The average speed of the molecules increases

c) The molecules collide with each other more often

Which statement(s) correctly explain the increase in pressure?

Infinity Learn · Accepted Answer

As temperature is constant, the average speed of molecules remains constant. The pressure is not due to molecules colliding with each other but colliding with the piston

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