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An exhausted chamber with nonconducting ...

An exhausted chamber with nonconducting walls is connected through a valve to the atmosphere where the pressure is `p_0`and the temperature is `T_0`.The valve is openeds lightly and air flows into the chamber until the pressure with in the chamber is `p_0`.Assuming the air to be have like an ideal gas with constant heat capacities, the final temperature of the air in the chamber is

A

`yT_o`

B

`(T_O/y)`

C

`(1/y - 1)T_0`

D

`(y/1-y)T_0`

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