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Q. The heat of combustion of methane is 880 kJ. The amount of heat liberated when 2 g of methane is completely burnt in air is

COMEDKCOMEDK 2005Thermodynamics

Solution:

$\underset{16\, g \,\, 2\,g}{CH_4} + 2O_2 \rightarrow \underset{16 \,g}{CO_2 + 2 H_2 O} , \Delta H = - 880 \, kJ $