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STD 11 - 12. kinetic theory of gases — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 12. kinetic theory of gases4 Marks
Question
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 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
✓

Answer

It is the free expansion Internal energy of the gas remains constant, hence

$T_{2}=T$

Using at constant temperature,

$P_{1} V_{1}=P_{2} V_{2}$

$P_{2}=\frac{P}{2}$

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