Question

Dik 1 kg air bersuhu 90derajarC di campur dhn 2kg air bersuhu 60drajatC. Brapa suhu campuran air tersebut ?????

Answer 1

Dik=
m₁=1
m₂=2
t₁=90°
t₂=60°
Q₁=Q₂
m₁.c.Δt=m₂.c.Δt
1.(t₁-ta)=2.c.(ta-t₂)
1.(90-ta)=2(ta-60)
90-ta=2ta-120
3ta=102
ta=34°C