Question

A horizontal insulated cylinder of volume $V$ is divided into four identical compartments by stationary semi-permeable thin partitions as shown. The four compartments from left are initially filled with 28 g helium, 160 g oxygen, 28 g nitrogen and 20 g hydrogen respectively. The left partition lets through hydrogen, nitrogen and helium while the right partition lets through hydrogen only. The middle part lets through hydrogen and nitrogen both. The temperature $T$ inside the entire cylinder is maintained constant. After the system is set in equilibrium

• A. pressure of helium $\frac{14RT}{V}$
• B. pressure of oxygen $\frac{20RT}{V}$
• C. pressure of nitrogen $\frac{4RT}{V}$
• D. pressure of hydrogen $\frac{10RT}{V}$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A pressure of helium $\frac{14RT}{V}$
B pressure of oxygen $\frac{20RT}{V}$
C pressure of nitrogen $\frac{4RT}{V}$
D pressure of hydrogen $\frac{10RT}{V}$