Jawabanmu

2014-03-06T06:31:04+07:00
    diket :   m = 5 kg c  atau kalor jenis zat = 4200 Joule/kilogram°C t1 = 30oC t2 (air mendidih) = 100 oC  Δt= 100 – 30 = 70
tanya : Q
jawab : Q = m x c x Δt

Q = 5 x 4200 x 70 = 1.470.000 joule = 1.470 kj