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If a gas is heated at constant volume, which of the following statements is true?

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If a gas is heated at constant volume, which of the following statements is true?

(a) Kinetic energy of the gas particles will decrease

(b) Pressure will increase

(c) Number of moles of gas will increase

(d) Volume will increase

The question was asked during an online interview.

I would like to ask this question from Ideal gas topic in division Material Balances for Multi-Unit Systems and Ideal and Real Gases of Chemical Process Calculation

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Right answer is (b) Pressure will increase

The explanation: P is inversely proportional to temperature and the volume is constant (PV = nRT). Moles of the gas are constant.

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