Jika 75 gram air suhunya 0 derajat celcius dicampur dengan 50 gram air yang suhunya 100 derajat celcius jikakalor jenis air 1 kalori per gram derajat celcius tentukan suhu akhir campuran itu
reginay
Q lepas = Q terima m x c x Δt = m x c x Δt 50 x 1 x (100 - tc) = 75 x 1 x (tc - 0) 50 x (100 - tc) = 75 x (tc - 0) 5000 - 50tc = 75tc 5000 = 125tc tc = 40°C
m x c x Δt = m x c x Δt
50 x 1 x (100 - tc) = 75 x 1 x (tc - 0)
50 x (100 - tc) = 75 x (tc - 0)
5000 - 50tc = 75tc
5000 = 125tc
tc = 40°C