Jawabanmu

2014-04-09T16:52:23+07:00

Dik : Q = 84 KJ = 84.000 J
        m = 500 g = 0,5 kg
        c = 4200 J/ kg. k
Dit : T
?
Jawab :

Q = 84 kj = 84000
m = 500 g = 0.5 kg
t1 = 20 C
kalor jenis = 4200J/(Kg.K)
t2 = ?

Δt = Q/m . kalor jenis
( t2 - t1 ) =  8400/ 0,5 . 4200
( t2 - 20) = 40 
t2 = 40+20
t2 = 60 derajat celcius


thank'z lam kenall,,bntu slalu y
YoU re'welcome