An Ideal Gas, Consisting of N Moles, Undergoes a Reversible

question 4

Multiple Choice

An ideal gas, consisting of n moles, undergoes a reversible isothermal process during which the volume changes from V_i to V_f.The change in entropy of the thermal reservoir in contact with the gas is given by:

• A)nR(V_f - V_i)
• B)nR ln(V_f - V_i)
• C)nR ln(V_i/V_f)
• D)nR ln(V_f/V_i)
• E)none of the above (entropy can't be calculated for the thermal reservoir)

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