An ideal gas of mass m and temperature T1 undergoes a reversible isothermal pro

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An ideal gas of mass m and temperature T1 undergoes a reversible isothermal process from an initial pressure P1 to final pressure P2. The heat loss during the process is Q. The entropy change âˆ†S of the gas is

Options:

A . mR ln(P2/P1)

B . mR ln(P1/P2)

C . mR ln(P2/P1) - Q/T1

D . zero

Answer: Option B

-NA-

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