Question Statement:
Which of the following is NOT always true for a combustion process taking place
in a closed system?
Options:
-
(A) Total number of atoms is conserved
-
(B) Total number of molecules is conserved
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(C) Total number of atoms of each element is conserved
-
(D) Total mass is conserved
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.42)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Air-Breathing & Rocket Propulsion** under *Propulsion* (2 Marks, 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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