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)

A.

1,160 kJ mol-1

B.

1,180 kJ mol-1

C.

1,560 kJ mol-1

D.

1,600kJ mol-1

E.

1,680 kJ mol-1

View answer & explanation

Correct answer is E

The heat of combustion of methane is 1680 KJ mol-1

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