Air bermassa 20 kg bersuhu 20°C dicampur dengan 10 kg air bersuhu 80°C. jika kalor jenis air 4200 J/kg°C, hitunglah:
a. kalor yg dilepas air 10 kg
b. kalor yg diterima air 20kg
c. suhu akhir campuran berdasarkan azas Black
a. kalor yg dilepas air 10 kg
b. kalor yg diterima air 20kg
c. suhu akhir campuran berdasarkan azas Black
More Questions From This User See All
m c Δt = m c Δt
20 . 4200 . (tc-20) = 10 . 4200 . (80-tc)
2tc-40 = 80-tc
3tc = 120
tc =40 derjat
qlepas
10.4200.80-40 = 4200.60 =252000
qterima
20.4200.40-20= 8400.20=168000kalor