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Q.

An ideal gas undergoes adiabatic irreversible expansion from V1 to V2 against a constant external pressure. If T1 to T2 are the temperatures in the initial and final states, then which of the following statements is correct?

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a

T2<T1

b

T2=T1

c

T2>T1

d

V1/T1=V2/T2

answer is C.

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Detailed Solution

Work is done by the system at the expense of internal energy. Hence, cooling effect in the gas is observed and thus T2<T1.

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