Jawabanmu

2014-04-13T10:49:21+07:00
Q1 = Q2
m1 c t = m2 c t                          karna c sama maka dicoret
2.  (95- x) = 18 (x-30)
95 -x = 9x -270
  10x= 365
   x   = 36,5°C


3 5 3
2014-04-13T10:54:26+07:00
Dik: 
Q = m.c.ΔT
cair = 4200 kg/m³ (karena sama2 air jadi bisa di coret)
m1 = 2kg
m2 = 18kg
t1 = 95°C
t2 = 30°C

Dit: Takhit/suhu akhir/suhu campuran

Azas black:
Qterima = Qlepas
m.c.ΔT1 = m.c.ΔT2
2.(95-ta) = 18.(ta-30)
190 - 2ta = 18ta - 540
190 + 540 = 18ta + 2ta
730 = 20ta
ta = 730/20 = 36,5°C

maaf kalau salah ya..
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