Jawabanmu

2014-03-22T13:05:05+07:00
Q lepas = Q trima 
m.c.Δt = m.c.Δt
2.4200.(100-tx) = 18.4200.(tx-25)
840000-8400tx = 75600tx - 1890000
150000 = 67200tx
tx = 2.22
2014-03-22T15:26:10+07:00
Q lepas = Q trima 
m x c x Δt = m x c x Δt
2 x 4200 x (100-tx) = 18.4200 x (tx-25)
840000-8400tx = 75600tx - 1890000
150000 = 67200tx
tx = 2.22