First slide

Thermodynamic processes

Question

A thermally insulated container is divided into two parts by a screen. In one part the pressure and temperature are P and T for an ideal gas filled. In the second part it is vacuum. If now a small hole is created in the screen, then the temperature of the gas will

Moderate

A

Decrease
B

Increase
C

Remain same
D

None of the above

Solution

This is the case of free expansion of gas. In free expansion $ΔU = 0 \Rightarrow$ Temp. remains same.

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