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Q = m×c×Δt
Q = 0,2×4200×15
Q = 12600 Joule
m = 200 gr = 0,2 kg
ΔT = 35-20 = 15⁰C
c = 4200 J/kg⁰C
ditan
Q.....?
penyelesaian
Q = m.c.ΔT
Q = 0,2 . 4200 . 15
Q = 12600
jadi kalor yang diperlukan adalah 12600 J = 12,6 kJ
jangan lupa dipelajari ya