GATE AE · 2026 · AE
Question 52: Basics
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Question 52
AENAT2 marksNeeds review
Isobutane (C₄H₁₀) is burnt completely in pure oxygen as per the reaction given below. Given that the standard heats of formation (in kcal/mole) of isobutane, carbon dioxide, and water vapour are −31.49, −94.052, and −60.150, respectively, the heat of reaction is ________ kcal (rounded off to 2 decimal places).
C₄H₁₀ + 6.5 O₂ → 4 CO₂ + 5 H₂O
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2026AE
GATE AE 2026 · Paper 1
Aerospace Engineering · Original paper archive
- Section
- Aerospace Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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