I have this question which I think the MCQ answers are wrong.
However, because it is from the junior physics olympiad sample
questions, I just need to confirm
Question
A 700MW electric power plant has an efficiency of 25%. It loses
its waste heat in large cooling towers by evaporating a fine mist
of water. If all the waste heat went only into the evaporation of
water, how many tons of water would be evaporated a day?
(Latent heat of vaporization of water = 2.26 x 106
J/kg)
A) 100,000
B) 80,000
C) 50,000
D) 30,000
E) 25,000
My calculations was 20,000 tons... Can anyone help confirm?
Thanks.