Jawabanmu

2014-05-20T11:53:22+07:00
Data soal:
m1 = 150kg
m2 = ???
ΔT1 = 90 - 40 = 50°C
ΔT2 = 40 - 0 = 40°C

Asas pertukaan kalor/asas black
Qlepas = Qterima
m2 x c x ΔT2 = m1 x c x ΔT1
x x 40 = 150 x 50
40x = 7500
x \frac{7500}{40}
x = 187.5kg
2014-05-20T12:01:02+07:00
M1 C Δt = m2 C Δt
150 x 50 = m2 40
m2 = 150 x 50 / 40
= 187,5 gram