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If 900g of water at 90^(@)C is to be coo...

If `900g` of water at `90^(@)C` is to be cooled to `40^(@)C` by adding ice at `0^(@)C` ,the mass (in grams) of the ice required is (Latent heat of ice is 80kcal/kg ,specific heat of water is 1kcal/`kg^(@)C`.

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