Question

A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?
bobpursley
The sum of heats gained is zero.

masswater*c*(Tf-33)+masscopper*c.cu*(Tf-85)=0
solve for Tf

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