nicolaslopez430 nicolaslopez430

23-03-2020
Chemistry

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How many joules of heat is lost when a 64 g piece of copper cools from 375 oC to 26 oC? The specific heat of copper is 0.38 J/goC.

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hollandgrzesiak hollandgrzesiak

23-03-2020

Answer: 8500 J lost or -8500 J

Explanation:

q=cmt

t=375-26

t=349

q=0.38(64)(349)

q=8487.68 J

Answer must have 2 sig figs, which means it rounds to 8500 J.

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6849 rounded to the nearest 100