An electric motor of 5 kW is subjected to a braking test for 1 hour. The heat generated by the frictional forces in the process is transferred to the surroundings \[20{}^\circ C.\] The resulting entropy change will be:

An electric motor of 5 kW is subjected to a braking test for 1 hour. T

1.	An electric motor of 5 kW is subjected to a braking test for 1 hour. The heat generated by the frictional forces in the process is transferred to the surroundings \[20{}^\circ C.\] The resulting entropy change will be:
A.	22.1 kJ/K
B.	30.2 kJ/K
C.	61.4 kJ/K
D.	82.1 kJ/K
Answer» D. 82.1 kJ/K

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An electric motor of 5 kW is subjected to a braking test for 1 hour. The heat generated by the frictional forces in the process is transferred to the surroundings \[20{}^\circ C.\] The resulting entropy change will be:

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