Jawabanmu

2014-05-25T10:49:13+07:00
Q= m*c*Δt
95000 = 0,3*4200*t2-30
95000 = 1260*t2-30
75,39 = t2-30
t2 = 105,39 derajat C
2014-05-25T11:16:09+07:00
Diket= Q=95kJ=95000J
          m=300gr=0.3kg
          Cair=4200J/kgC
          Tawal=30 C
Dit= Takhir?
Jawab=
Q=m.c.∆T
Q=m.c.(Takhir-Tawal)
95000=(0,3)(4200)(Takhir-30)
95000=1260(Takhir-30)
95000=1260Takhir-37800
1260Takhir=95000+37800
Takhir=132800/1260
         =105,4 celcius