Jawabanmu

2014-04-21T19:24:49+07:00
Dik m1=50g=0,05kg
       T1=30°
     m2=25g=0,025kg
     T2=80°
dit. T campuran
 m.C.ΔT=m.C.ΔT
0,025 X 4200 (80-T)=0,05 X4200 (T-30)
105 (80-T)= 210 (T-30)
15 (80-T)=30 (T-30)
1200-15t=30t-900
1200+900=30t + 15t
2100=45t
T=2100/45
T=46,66°c
1 5 1
2014-04-21T19:25:36+07:00
Jawaban 46,6drajat

mcΔt=mcΔt
0,5x4200x(x-30)=0,25x4200x(80-x)
1/2x-15=20-1/4x
3/4x=35
x=46,6 drajat