5 Kg of water (CP = 1 J/Kg°C) is pumped to a height of 0.5 m, work done by

Question

5 Kg of water (CP = 1 J/Kg°C) is pumped to a height of 0.5 m, work done by the motor is 50 J/Kg, and heat liberated by it is 5 J/Kg, what is the final temperature of water if the initial temperature was 0°C?

Options:

A . 2°C

B . 4°C

C . 6°C

D . 8°C

Answer: Option C
Answer: (c).6°C

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