Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IDH/DU for reactionMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
An amount of 4 mole of hydrogen gas is taken in a vessel at STP and the vessel is sealed. Now the gas is cooled to -50°C.
What is the change in enthalpy of gas?
Options:
Answer:
A
Solution:
Cp,m = 7/2R = 7 cal/mol K. Δ H = nCp,mΔ T = 4 × 7 × (-50) = -1400 cal. Matches (a).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:DH/DU for reaction
⏱ 2mℹ️ Source: QB
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