How much heat energy is required to prepare a water bath of 20kg, when cold water at 10oC is heated to 40oC? (Specific heat capacity of water is 4200J/kgoC) :
A
252000000J
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B
252000J
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C
25200J
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D
2520000J
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Solution
The correct option is C2520000J Temperature raise is 40−10=30oC