JAMB - Chemistry (1982 - No. 42)
0.16g of methane when burnt raises the temperature of 100g of water by 40°C. What is the of combustion of methane when if the heat capacity of water is 4.2 Jg-1°C-1?
(CH4 = 16)
(CH4 = 16)
1,160 kJ mol-1
1,180 kJ mol-1
1,560 kJ mol-1
1,600kJ mol-1
1,680 kJ mol-1
Paaiškinimas
The heat of combustion of methane is 1680 KJ mol-1