Jawabanmu

2014-05-06T18:11:44+07:00
Diketahui : V = 2 liter = 2000 cm³
ΔT = 80-50 =  30^{0}
rho = 1 g/cm³
C = 1 kal/gram derajat celsius
ditanya: Q ?
jawab :
cari dulu massanya , yaitu .rho × V = 1 × 2000 = 2000 gram
lalu cari Q = m.C.ΔT = 2000 × 1 × 30 = 60.000 kalori