NEET2013Chemistry-Thermochemistry
NEET 2013 Chemistry Heat of Combustion MCQ Question
Type: MCQ-numerical-Hard-Class 11
When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0°C and 1 atmosphere, 16 litres of oxygen at the same temperature and pressure is consumed. The amount of heat released from this combustion in kJ (ΔHcomb: CH₄(g) = 890 kJ mol⁻¹, ΔHcomb: C₃H₈(g) = 2220 kJ mol⁻¹) is:
A
38
B
317
C
477
D
32
Correct Answer
Option C
Detailed Explanation
The combustion reaction involves stoichiometry to determine the moles of methane and propane, and their respective heat of combustion is used to calculate the total heat released.
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