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1. |
1 Kg of water (CP = 0.4 J/KgoC) is pumped to a height of 2 m, work done by the motor is 50 J/Kg, and heat liberated by it is 10 J/Kg, what is the final temperature of water if the initial temperature was 25oC? |
A. | t25<sup>o</sup>C |
B. | t45<sup>o</sup>C |
C. | t60<sup>o</sup>C |
D. | t75<sup>o</sup>C |
Answer» E. | |