The pressure of a given mass of a gas is decreased by 20% at constant temperature, then its volume will (a) decrease by 20%. (b) increase by 20%. (c) decrease by 25%. (d) increase by 25%

Answer: (d). Boyle's law: V ∝ 1/P at constant T. P' = 0.8P ⇒ V' = V/0.8 = 1.25V So the answer is (d): volume increases by 25%.

The pressure of a given mass of a gas is decreased by 20% at constant… | MHT CET 2026 (12 May, Shift 1)

Q3MHT CET 2026 · 12 MAY · SHIFT 1Easy

Gas Laws & Ideal Gas Equation

The pressure of a given mass of a gas is decreased by $20\%$ at constant temperature, then its volume will

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Answer: (d)

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