Jawabanmu

2014-04-21T14:30:20+07:00
Q= m.c.△T 2500 J = 0,1 kg . 20 . c 2500= 2 c c = 1250 kg.c / J
2014-04-21T14:49:19+07:00
Dik: m = 100 g = 0,1 kg Q = 2500 J t1 = 50oC t2 = 30oC At = t1 - t2 = 50 - 30 = 20oC Dit : c Jawab Q = m.c.At 2500 = 0,1 * 20 * c c = 2500 / 0,1 * 20 = 2500 / 2 = 1250 JKgoC