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m = 0,5 kg
delta T = 20drajat C
c = 1000 J/kg drajat C
ditanya = Q ?
Q = m.c.delta T
= 0,5.1000.20
= 10000 juole
2. diketahui
m = 200g = 0,2 kg
L = 336000 J/kg
ditanya = Qlebur
Qlebur = m.L
= 0,2.336000
= 67200 joule