GATE ME 2017 Set 1 — Question 36
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumCombustion & KnockingIC EnginesThermodynamics
Thermodynamics → IC Engines → Combustion & Knocking
Last updated
Question
Air contains 79% and 21% on a molar basis. Methane () is burned with 50% excess air than required stoichiometrically. Assuming complete combustion of methane, the molar percentage of in the products is ______.
Correct answer
72 to 75
Solution
1.Stoichiometric combustion reaction for methane:
Stoichiometric required = 2 moles.
2.Determine actual air supplied:
Excess air = 50%, so actual supplied = moles.Since air is 79% and 21% , the ratio of to is .
Moles of supplied = moles.
3.Determine product composition:
- : 1 mole
- : 2 moles
- Excess : mole
- : 11.286 moles (inert)
Total moles = moles.
5.Calculate molar percentage of :
Molar % .Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE ME question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on IC Engines
2026 Set 1 Q23For an ideal gas, starting from state point 1, two different processes take place. The…2026 Set 1 Q28For the isothermal expansion of an ideal gas in a piston cylinder system, the net heat supplied…2026 Set 1 Q44For an ideal regenerative Rankine cycle, as shown in the figure below, which one of the following…2026 Set 1 Q56A liquid comes out of the reactor of a chemical plant at temperature…2026 Set 1 Q57A rigid closed vertical cylindrical vessel of diameter contains …