Air in a cylinder is suddenly compressed by a piston, which is th… - Vidyadip

MCQ

Air in a cylinder is suddenly compressed by a piston, which is then maintained at the same position. With the passage of time

✓
The pressure decreases
B
The pressure increases
C
The pressure remains the same
D
The pressure may increase or decrease depending upon the nature of the gas

✓

Answer

Correct option: A.

The pressure decreases

a
(a) Due to compression the temperature of the system increases to a very high value.

This causes the flow of heat from system to the surroundings, thus decreasing the temperature.

This decrease in temperature results in decrease in pressure.

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