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JEE Advanced 2020 Full Test 6 Paper 2

Question : 27

Total: 54

Which is / are correct statement?

W‌on the system adiabatic ‌>W‌on thesystem, isothermally ‌ in an ideal gas compression from same initial state to same final volume
The value of γ(γ=‌
Cp
Cv
) remains constant for diatomic gas at all temperature
Entropy increases when an ideal gas expanded isothermally.
∆rH&∆rS both are + ve for the decomposition of MgCO3(s).

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