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(D) For an adiabatic process,the relation between pressure $P$ and volume $V$ is given by $PV^{\gamma} = 	ext{constant}$.As the volume $V$ decreases

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increase in temperature and increase in pressure

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(D) For an adiabatic process,the relation between pressure $P$ and volume $V$ is given by $PV^{\gamma} = 	ext{constant}$.As the volume $V$ decreases during compression,the pressure $P$ must increase to keep the product constant.According to the ideal gas law $PV = nRT$,since $P$ increases and $V$ decreases,the temperature $T$ must increase because the work done on the gas increases its internal energy in an adiabatic process ($Q = 0$,$\Delta U = -W$).Therefore,in adiabatic compression,both temperature and pressure increase.

In adiabatic compression,the decrease in volume is associated with

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