Jawabanmu

2014-03-04T20:44:11+07:00
Es melebur = 0
air menguap =  80 R = 100 C
2014-03-04T20:45:57+07:00
Y = 0--------------------150
C=0----------------------100
R=0----------------------80

Y=R=C
150=80=100
1 1 1