The r.m.s. velocity of gas molecules kept at temperature 27 in a vessel is 61 m/s. Molecular weight of gas is nearly [R = 8.31(J)/(mol K)] (a) 2 (b) 4 (c) 28 (d) 32

Answer: (a). vrms = √(3RT/M) ⇒ M = 3RTvrms² M = (3 × 8.31 × 300)/(61²) = (7479)/(3721) ≈ 2 So the answer is (a) 2.

The r.m.s. velocity of gas molecules kept at temperature 27 in a… | MHT CET 2024 (3 May, Shift 2)

Q31MHT CET 2024 · 3 MAY · SHIFT 2Medium

Molecular Speeds & Maxwell Distribution

The r.m.s. velocity of gas molecules kept at temperature $27^\circ\text{C}$ in a vessel is $61\text{ m/s}$ . Molecular weight of gas is nearly

$\left[R = 8.31\frac{\text{J}}{\text{mol K}}\right]$

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Answer: (a)

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