One kg of an ideal gas (gas constant, R= 400 J/ kgK; specific heat at constant volume, cp = 1000 J/kgK) at 1 bar, and 300 K is contained in a sealed rigid cylinder. During an adiabatic process, 100 kJ of work is done on the system by a stirrer. The increase in entropy of the system is _______ J/K.

One kg of an ideal gas (gas constant, R= 400 J/ kgK; specific heat at

1.	One kg of an ideal gas (gas constant, R= 400 J/ kgK; specific heat at constant volume, cp = 1000 J/kgK) at 1 bar, and 300 K is contained in a sealed rigid cylinder. During an adiabatic process, 100 kJ of work is done on the system by a stirrer. The increase in entropy of the system is _______ J/K.
A.	287.68 J/K
B.	187.68 J/K
C.	387.68 J/K
D.	277.68 J/K
Answer» B. 187.68 J/K

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