Air panas sebanyak 2 kg dituang kedlm ember yg berisi air dingin sebnyak 18kg . kemudian d campur ... suhu air bak mandi sebesar 25°c . apabila suhu air panas 95°c .suhu akhir cmpuran adalah....!
Dyahayu783suhu akhir cmpuran adalah 90 derajat celcius.
#MAAFKALAUSALAH ;;)
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hidayatNKF
Dik ; m1 = 2 kg m2 = 18 kg Δt1 = 95'C Δt2 = 25'C Dit ; t cam ? Jwb : m1.c1.Δt1 = m2.c2.Δt2 2 kg.( 95'C - t cam ) = 18 kg. ( t cam - 25'C ) 190 kg'C - 2 kg t cam = 18 kg t cam - 450 kg'C 190 kg'C + 450 kg'C = 18 kg t cam + 2 kg t cam 640 kg'C = 20 kg t cam t cam = 640'C / 20 = 32'C
#MAAFKALAUSALAH ;;)
m2 = 18 kg
Δt1 = 95'C
Δt2 = 25'C
Dit ; t cam ?
Jwb :
m1.c1.Δt1 = m2.c2.Δt2
2 kg.( 95'C - t cam ) = 18 kg. ( t cam - 25'C )
190 kg'C - 2 kg t cam = 18 kg t cam - 450 kg'C
190 kg'C + 450 kg'C = 18 kg t cam + 2 kg t cam
640 kg'C = 20 kg t cam
t cam = 640'C / 20
= 32'C
maaf ya kalau salah