Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IHeat & Heat CapacityEasy2 minQB
ChemistryEasysingle choice
Heat energy of 743 J is needed to raise the temperature of 5 moles of an ideal gas by 2 K at constant pressure. How much heat energy is needed to raise the temperature of the same mass of the gas by 2 K at constant volume?
Options:
Answer:
C
Solution:
qp = nCpΔ T, so Cp = 743/(5 × 2) = 74.3 J/K-mol. Cv = Cp - R = 74.3 - 8.314 = 65.99 J/K-mol. qv = 5 × 65.99 × 2 = 660 J. Matches (c).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Heat & Heat Capacity
⏱ 2mℹ️ Source: QB
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