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Four cubes of ice at -10^(@)C each one g...

Four cubes of ice at `-10^(@)C` each one gm is taken out from the refrigerator and are put in `150 gm` of water at `20^(@)C`. The temperature of water when thermal equilibrium is attained. Assuming that no heat is lost to the outside and water equivalent of contaner is `46 gm`. (Specific heat capacity of water `= 1 cal//gm-^(@)C`, Specific heat capacity of ice `=0.5 cal//gm-^(@)C`, Latent heat of fusion of ice `= 80 cal//gm-^(@)C`)

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