An enclosed ideal gas is taken through a cycle as shown in figure. Then

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11.Thermodynamics

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An enclosed ideal gas is taken through a cycle as shown in the figure. Then

A

Along $AB$, temperature decreases while along $BC$ temperature increases

B

Along $AB$, temperature increases while along $BC$ the temperature decreases.

C

Along $CA$ work is done by the gas and the internal energy remains constant.

D

Along $CA$ work is done on the gas and internal energy of the gas increases.

Solution

For ideal gas, $P=n R T \frac{1}{V}$

Along $AB$, $P$ is constant and $\frac{1}{V}$ increases $\Longrightarrow T$ decreases

Along $BC,$ $P$ increases and $\frac{1}{V}$ remains constant $\Longrightarrow T$ increases

Standard 11

Physics

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