Question

the heat of combustion of butane is 2890KJper mole.its calorific value is​

Answer 1

Calorific value is the amount of heat produced by complete combustion of 1 Kg of fuel,

so, in case of methane, 16g of methane produce −890.3Jmol

−1

amount of energy,

so, 1 Kg of metahne produce −55643.75Jmol

−1

in case of ethane, 28 g produce −1560Jmol

−1

amount of energy

so, 1 Kg of ethane produce enrgy = −55714.28Jmol

−1

hence, the energy produce by 1 Kg of ethane is mor than that of methane,

so, Ethane have higher calorific value.

Answer 2

Answer:

2.8 moles

Explanation: