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Qlepas = Qterima
c1 . m1 (To - Tt) = c2 . m2 (Tt - Tc)
kalor yang dilepas logam = kalor yang diterima air
=
90 . . (95 - 19,4) = 250 . 1 . (19,4 - 17)
90 . . 75,6 = 250 .1. 2,4
= 250 . 1 . 2,4 / 90 . 75,6 = 600/3780 = 0,1
Jadi, kalor jenis logamnya adalah 0,1 J/g°C