1.

5 Kg of water is pumped to a height of 5 m, the enthalpy is changed by 10 J/Kg, and work done by the motor is 100 J/Kg, assuming system is insulated what is the change in internal energy of water?

A. 50 J
B. 100 J
C. 150 J
D. 200 J
Answer» E.


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