PLISS ANAK SMP JAWAB DONK!!!

Berat suatu logan = 500 gram = 0,50 kg.
suhu logam = 90 °C
banyak air = 1 kg = 1.000 gram.
suhu air = 30 °C
suhu campuran = 40°
kalor jenis air = 1 kal/gram°C
ditanya kalor jenis logam ?...

jawab : 40°C x 30°C = 1.200°C : 1.000 gram = 1,2 = 1 kalor jenis air.
90x40x30= 108.000
500 x 1.000 = 500.000 : 108.000 = 4,629 kal/gram°C