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A ring-shaped tube contains two ideal gases with equal masses and relative molar masses M 1 = 32 and M 2 = 28 . The gases are separated by one fixed partition and another movable stopper S which can move freely without friction inside the ring. What is the value of the angle α (in degree) at equilibrium?

Correct answer

192

Step-by-step solution

Pressure on both sides will be equal. i.e., p 1 = p 2 n 1 RT V 1 = n 2 RT V 2 n = m M or m M 1 V 1 = m M 2 V 2  or  V 2 V 1 = M 1 M 2 = 3 2 2 8 = 8 7 ∴ α = 360 ° 8 + 7 × 8 = 192 °

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