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= 0,35 x 4200 x 90
= 132300 j
m = 350 gram = 0,35 Kg
c = 4200 J/Kg'C
t1 = 30'C
t2 = 120'C
Dit: Q........?
Q = m . c (t2-t1)
Q = 0,35 . 4200 . (120-30)
Q = 0,35 . 4200 . (90)
Q = 132300 J
atau
Q = 132,3 kJ