alleryEqual water masses80°C,20°C mix in a cup20°C of the same heat capacity as one mass. No loss. Final T?
A60°C
B50°C
C30°C
D40°C
Answer & Solution
Correct answer: D. 40°C
The two water masses and cup have equal heat capacities, so the final temperature is (80+20+20)/3=40°C.
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