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A 31 g block of ice is cooled to −90◦C. It is added to 591 g...

A 31 g block of ice is cooled to −90◦C. It is added to 591 g of water in an 65 g copper calorimeter at a temperature of 26◦C. Find the final temperature. The specific heat of copper is 387 J/kg · ◦C and of ice is 2090 J/kg · ◦C . The latent heat of fusion of water is 3.33 × 105 J/kg and its specific heat is 4186 J/kg · ◦C . Answer in units of ◦C.

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