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Juliette [100K]
3 years ago
8

I don't know how to solve this please help

Physics
1 answer:
Luden [163]3 years ago
7 0
Energy = mass * SHC * temp change


Temp change = energy/SHC * mass

42kJ - 42000J (convert kJ to J as energy is counted as J/kg)

Temp change = 42000/4200*10
= 1C

So it goes up by 1C thus the final temperature would be 26C


Or a more logical way to think of it would be that if it takes 4200J to heat up 1kg of water by 1C (SHC is 4200J/kgC) it would take ten times the amount of energy to heat up 10kg of water by 1C hence it takes 42000J.
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