Jawabanmu

2014-06-18T17:09:39+07:00
M = 2 kg, t1 = 0C, t2 = 100C, C.air = 4200 J/kg, C.l.es= 336 J/kg, C.U.air =2.260 J/kg
Q = m.L.es = 2kg x 336J/kg = 672 J
Q = m.C.air.Δt = 2 x 4200 x 100 = 840.000 J = 840 KJ
Q = m. C.uap = 2 x 2260 = 4.520 J
Qtotal = Q1 + Q2 + Q3 = 672J + 840.000J + 4520J = 845.192J