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Q = 84 Kj = 84000 Joule
m = 500 gram = 0,5 Kg
t1 = 20°C
c = 4.200 J/(Kg.K)
Dit : t2 .......?
Penyelesaian :
t = Q / m .c
( t2 - t1 ) = 8400/ 0,5 . 4200
( t2 - 20) = 40
t2 = 40+20
t2 = 60°C