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m = 2kg
t1 = 30'C
t2 = 100'C
c = 4200 j/kg'c
Dit: Q......?
jawab:
Q = m . c . (t2 - t1)
Q = 2 x 4200 x (100-30)
Q = 8400 x 70
Q = 588.000 J
atau
Q = 588 kJ
= 2 x 4200 x 70
=588000 J