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MHT CET 2023 (13 May, Shift 1) · Gas Laws & Ideal Gas Equation

Gas Laws & Ideal Gas Equation question from MHT CET 2023 (13 May, Shift 1)

Q40MHT CET 2023 · 13 MAY · SHIFT 1Easy

Gas Laws & Ideal Gas Equation

Which one of the following represents correctly the variation of volume (V) of an ideal gas with temperature $(T)$ under constant pressure conditions?

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Answer: (b)

Charles's law: at constant $P$ , $V = \left(\dfrac{nR}{P}\right)T$ , so $V \propto T$ .
The $V$ – $T$ graph is a straight line of positive slope that passes through the origin when extended.
Graph Q shows this rising straight line; P falls, R is not a single line, S is constant.
So the answer is (b) Q.

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