If a gas is compressed isothermally then the r.m.s. velocity of its molecules (a) increases. (b) decreases. (c) remains the same. (d) first increases and then decreases.

Answer: (c). vrms = √(3RT/M) ∝ √(T). Isothermal compression keeps T constant. So the answer is (c) remains the same.

If a gas is compressed isothermally then the r.m.s. velocity of its… | MHT CET 2025 (20 Apr, Shift 2)

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Thermodynamic Processes

If a gas is compressed isothermally then the r.m.s. velocity of its molecules

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Answer: (c)

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