A 150 g aluminum cup contains 1150 g of water in thermal equilibrium with the cup at 90°C?
A 150 g aluminum cup contains 1150 g of water in thermal equilibrium with the cup at 90°C. The combination of cup and water is cooled uniformly so that the temperature decreases by 2.6°C per minute. At what rate is energy being removed? Express your answer in watts.
Update:it is wrong muqueem
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Verified answer
(150*0.9*2.6+1150*4.186*2.6)/60 watt
where-
specific heat of Al=0.9 j/gm Celsius
specific heat of water=4.186 j/gm Celsius