Jawabanmu

2014-04-14T14:32:41+07:00
Dik c air =  4200 J/(kg K)
      m = 
2 kg
      T1 = 50 C
      T0 = 0 C
Dit Q . . .?
jawab.
rumus Q = m c 
ΔT

Q = 2 . 4200 . (50 - 0)
    = 420 000 joule
    = 420 kj
1 5 1
2014-04-14T14:57:19+07:00
Q = m.c.Δt
    = 2.4200.323
    = 2713200 joule
    = 2713,2 kj