1 Kg of water is pumped to a height of 1 m, the enthalpy is changed by 5 J/Kg, a

Question

1 Kg of water is pumped to a height of 1 m, the enthalpy is changed by 5 J/Kg, and work done by the motor is 25 J/Kg, assuming system is insulated what is the change in internal energy of water?

Options:

A . 10 J

B . 25 J

C . 35 J

D . 50 J

Answer: Option A
Answer: (a).10 J

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