A 29 kg piece of zinc at 68◦C is placed in a container of water. The water...
A 29 kg piece of zinc at 68◦C is placed in a container of water. The water had a mass of 28 kg and a temperature of 20◦C before the zinc was added. The specific heat of zinc and water are 388 J/kg ·◦ C and 4180 J/kg ·◦ C, respectively. What is the final temperature of water and zinc? Answer in units of ◦ C.
Homework Answers
Let the final temperature be t
heat lost by Zinc = heat gained by water
mc
T for zinc =
mcT for water
29*388*(68- t) = 28*4180*(t - 20)
t = 24.2o C
so the final temperature of water and zinc is 24.2o C
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