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A body of mass 20 g at 100^(@)C is dropp...

A body of mass 20 g at `100^(@)C` is dropped into 200 g of water at `30^(@)C`. What will be the final temperature of the mixture ? Specific heat of the material of the body `="0.1 cal. G"^(-1).^(@)C^(-1).`

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`30.7^(@)C`
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