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A 15 g mass of nitrogen gas is enclosed in a vessel at a temperature 27ºC. Amount of heat transferred to the gas, so that rms velocity of molecules is doubled, is about : [Take R = 8.3 J/K mole]

1. 10 kJ
2. 0.9 kJ
3. 14 kJ
4. 6 kJ

Correct answer: 10 kJ

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