A container with insulating walls is divided into two equal parts by a partition fitted with a valve. One part is filled with an ideal gas at pressure P and temperature T, whereas the other part is completely evacuated. If the valve is suddenly opened, the pressure and temperature of the gas will be :

Question

Infinity Learn · Accepted Answer

It is a free expansion of gas so W $$=$$ $$0$$. As walls are insulating $$soQ=0$$, therefore ∆$$U=0$$⇒$$T=constant$$ So,                    $$P1V1=P2V2$$⇒$$Pf=Pi2$$

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