sample of natural gas is analyzed and found to be88.4% methane
Interpretation:
The energy released by burning of 1 kg of natural gas is to be calculated.
Concept introduction:
The energy of combustion of a substance can be found out using its formation enthalpy.
Answer to Problem 112A
The energy of 1 kg natural gas is -55269.03kJ.
Explanation of Solution
Chemical equation for combustion of ethane:
The equation involves 2 moles of C2 ? H6 ?; heat of combustion of ethane will be 2?H
Out of 1 kg natural gas, 884 g is methane and 116g is ethane.
Chapter 15 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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