Chemistry - Thermodynamics - 1 Question with Solution | TestHub

ChemistryThermodynamics - 1Adiabatic Process/PolytropicEasy2 minPYQ_2020
ChemistryEasysingle choice

For the reaction 2 CO (g) +  O 2 (g) → 2  CO 2 ​;  ΔH = −500 kJ . Two moles of CO and one mole ofO2are taken in a container of volume 2 L . They completely form two moles ofCO2, the gas deviate appreciably from ideal behaviour. If pressure in vessel change from 35 to 20 atm . Find the magnitude ofΔU at 500K. (Assume 1 L-atm = 0.1 kJ)

Options:

Answer:
A
Solution:

ΔU=ΔH-VΔP
ΔU=-500-2×35-20×0.1
=−503 kJ

Stream:NTA_ABHYASSubject:ChemistryTopic:Thermodynamics - 1Subtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: PYQ_2020

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