Jawabanmu

2014-06-08T11:13:54+07:00
Diket=
Q=2x100000=200000
m=5kg=0.005
C=?
T1=20
T2=70
ΔT=70-20=50

Q=M.C.ΔT
200000=0,005xCx50
200000=0,25C
C=200000:0,25
C=800000
2014-06-08T11:17:23+07:00
Q = mCΔT
2x10 pgkt5 J = 5kg . C . (70-20)
C = 2x10pgkt5 / 250
C =800 J/kg drjt C