The $PV$ diagram shows four different possible reversible processes performed on a monatomic ideal gas. Process $A$ is isobaric (constant pressure). Process $B$ is isothermal (constant temperature). Process $C$ is adiabatic. Process $D$ is isochoric (constant volume). For which process(es) does the temperature of the gas decrease ?
Medium
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In $A$ temperature will increase
in $B$ temperature remains constant
in $C \& D$ temperature decrease.
Hence, option $C$ is the correct answer.
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