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QNEET-2013-Ch-1548: NEET 2013 Chemistry - Class 11 NEET-2013-Ch-1548 Solution: When 5 litres of a gas mixture of methane and propane is…
When 5 litres of a gas mixture of methane and propane is perfectly combusted at 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 ( ) is 38 317 477 32
Multiple Choice Options
- A 38
- B 317
- C 477
- D 32
Step-by-Step Verified Solution
CH 4 + 2O 2 _ CO 2 + 2H 2 O
C 3 H 8 + 5O 2 _ 3CO 2 + 4H2 O
CH 4 + C 3 H 8 = 5 22.4 = 0.22 moles.
O 2 = 16 22.4 = 0.71 moles
2 x + ( 0.22 _ x ) 5 = 0.71
x = 0.13
Heat liberated = 0.13 _ 890 + 0.09 _ 2220 = 316 kJ