MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryThermodynamics and ThermochemistryIntroduction to Thermodynamics
When one mole of an ideal gas is compressed to half of its initial volume and simultaneously heated to twice its initial temperature, the change in entropy of gas (∆S) is :
A.Cp,m ln2
B.Cv,m ln2
C.R ln2
D.(Cv,m –R) ln2✓ Correct
Explanation
2 2 v 1 1 T v S nC ln nR ln T v v v,m 1 C ln 2 R ln C R ln 2 2
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