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c = 1 kal/g'c
t1 = 25'c
t2 = 100'c
Q = 2,4 kkal = 2,4x1000 = 2400 kal
Ditanya: m....?
jawab:
m = Q/c.(t2-t1)
m = 2400/1(100-25)
m = 2400/75
m = 32 g
massanya 32 gram