(a) The atomic weight of carbon is 12, hydrogen is 1 and oxygen is 16, and the formula for the combustion of methane (CH4) is given by : CH4 + 2 O2 CO2 + 2 H2O + energy A mole of methane releases 810 KJ of energy on burning. Calculate the weight of carbon dioxide produced by burning 5kg of methane. Identify an alternative gas for combustion that produces less carbon dioxide than methane and state how it is generated.

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(a) The atomic weight of carbon is 12, hydrogen is 1 and oxygen is 16, and the
formula for the combustion of methane (CH4) is given by :
CH4 + 2 O2 –→ CO2 + 2 H2O + energy
A mole of methane releases 810 KJ of energy on burning.
Calculate the weight of carbon dioxide produced by burning 5kg of methane.
Identify an alternative gas for combustion that produces less carbon dioxide
than methane and state how it is generated.
Transcribed Image Text:(a) The atomic weight of carbon is 12, hydrogen is 1 and oxygen is 16, and the formula for the combustion of methane (CH4) is given by : CH4 + 2 O2 –→ CO2 + 2 H2O + energy A mole of methane releases 810 KJ of energy on burning. Calculate the weight of carbon dioxide produced by burning 5kg of methane. Identify an alternative gas for combustion that produces less carbon dioxide than methane and state how it is generated.
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