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m = 500 gr = 0,5 kg
c air = 4.200 J/KgC
c es = 2.100 J/KgC
L = 340.000 J/KgC
Ditanyakan Proses B ke D ?
Dijwab :
Q B-C = m x L
= 0,5 x 340.000
= 170.000 J
Q C -B = m x c x (Tt-To)
= 0,5 x 4,200 x (10-0)
= 21.000 J
Jadi Q tot = 170.000 + 21.000 = 191.000 J
jawaban D