May 2021 2 168 Report
100-g cube of ice at 0°C is dropped into 1.0 kg of water that was originally at 80°C. Final temperature is?

(after the ice melts)

I've used Lf (latent heat of fusion) but I keep getting 117°C. But I think it's wrong. I have these choices:

a. 65°C

b. 32°C

c. 28°C

d. 0°C

for sure, it's not d. How should I solve this problem? please help.

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