miadnooner03 miadnooner03

07-05-2022
Physics

contestada

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?

Respuesta :

hinnocentholumede hinnocentholumede

11-05-2022

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

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