500 gram air suhunya 25 C dinaikan menjadi 75 c jika kalor jenis air 1 kal/gr c

m = 500 gram
c = 1 kal/gr°C
ΔT = T2 - T1 = 75°C - 25°C = 50°C
ditanya Q = ...?
jawab
Q = mcΔT
Q = (500)(1)(50)
Q = 25000 kal = 25 kkal