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If the temperature of a body is 200C, what will be the corresponding temperature on the Kelvin scale?
0.5 kg of lemon squash at 300C is placed in a refrigerator which can remove heat at an average rate of 30 Js-1. How long will it take to cool the lemon squash to 50C?(Sp. heat capacity of lemon squash = 4200 J kg-1 oC-1.)
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