Question

To cool her 0.200 kg cup of 75.0 C hot chocolate (mostly water), Heidi drops a 29,.97 g ice cube at 0 C into her insulated cup. After the ice cube melts, the temperature of the hot chocolate comes down to 54.8 C. a. How much energy was lost by the hot chocolate? The specific heat capacity of water is 1 cal/g C b. How much energy was gained by the ice cube just to melt to 0 C water? Latent heat of fusion is 80 cal/g. c. How much energy is needed for melted ice (water at 0 C) to reach the final temperature of 54.8 C? d. Do you think that the energy lost by the hot chocolate is the sum of the energy gained by the ice cube to melt and to reach the final temperature of 54.8 C? Explain. Please show all work thanks

Answer 1

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