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Two cyclinder A and B of equal capacity ...

Two cyclinder A and B of equal capacity are connected to eachother via a stopcock. The cyclinder A contains an ideal gas at standard temperature and pressure, while the cyclindr B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following:
(a) What is the final pressure of the gas in A and B?
(b) What is the change in internal energy of the gas?
(c ) What is the change in temperature of a gas?
(d) Do the intermidiate states of the system (before settling to the final equilibrium state)lie on its `P-V-T` surface?

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