Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IAdiabatic Process/PolytropicHard2 minQB
ChemistryHardnumerical
One mole of an ideal gas (γ = 1.4) is expanded isothermally at 27°C till its volume is doubled. It is then adiabatically compressed to its original volume. The magnitude of total work done by the gas is
Answer:
263.00
Solution:
Isothermal: w1 = RTln2 = 8.314×300×0.6931 = 1729 J (by gas). Adiabatic compression: T3 = 300×20.4 = 395.8 K; w2 = -CVΔ T = -2.5R×95.8 = -1992 J (work done by gas, negative). Net work done by the gas = 1729 - 1992 = -263 J; magnitude 263 J. Ans = 0263.
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: QB
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