A surrogate liquid hydrocarbon fuel, approximated as C 10H12, is being burned in a
land-based gas turbine combustor with dry air (79% N 2 and 21% O 2 by volume).
How many moles of dry air are required for the stoichiometric combustion of the
surrogate fuel with dry air at atmospheric temperature and pressure?
Options:
(A) 61.9
(B) 30.95
(C) 13
(D) 10
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2024 Q.17)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Air-Breathing & Rocket Propulsion** under *Propulsion* (1 Mark, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Air-Breathing & Rocket Propulsion.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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