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2.63 kg of molten copper already at its melting point has 750 kJ removed from it. In degrees Celsius, what will be the final temperature of the copper?
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2.63 kg of molten copper already at its melting point has 750 kJ removed from it.

In degrees Celsius, what will be the final temperature of the copper?

User Ergamon
by
4.9k points

1 Answer

2 votes

Answer:

Q=mc(T-t)

Q=750kj=750000j

SHC OF CU is 400j/kg/k

m=2.63kg

750000=2.63×400×T

750000=1052T

divide both side by 1052

750000/1052=T

T =712.9

User Adriano Castro
by
5.3k points
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