Choose the incorrect statement from the following:
S1: The efficiency of a heat engine can be 1, but the coefficient of performance of a refrigerator can never be infinity
S2: The first law of thermodynamics is basically the principle of conservation of energy
S3: The second law of thermodynamics does not allow several phenomena consistent with the first law
S4: A process, whose sole result is the transfer of heat from a colder object to hotter object is impossible

Options

A. S1
B. S3
C. S2
D. S4

Answer

A

Explanation

`eta=1-(T_2)/(T_1)`
For `eta=1, T_2=0K` (not possible).