JEE Main & Advanced
AIEEE Paper (Held On 11 May 2011)
question_answer
A container with insulating walls is divided into equal parts by a partition fitted with a valve. One part is filled with an ideal gas at a 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:
AIEEE Solved Paper (Held On 11 May 2011)
A)\[\frac{P}{2},\frac{T}{2}\]
B)\[P,T\]
C)\[P,\frac{T}{2}\]
D)\[\frac{P}{2},T\]
Correct Answer:
D
Solution :
It is the free expansion So, T remain constant \[{{P}_{1}}{{V}_{1}}={{P}_{2}}{{V}_{2}}\] \[P\frac{V}{2}={{P}_{2}}(V)\] \[{{P}_{2}}=\left( \frac{P}{2} \right).\]