One kg of carbon for theoretically complete combustion requires ______________ kg of air?
Correct answer: A. 11.5
- A. 11.5
- B. 0.5
- C. 23
- D. 12
Explanation
One kilogram of carbon needs 2.67 kg of oxygen, and since air contains about 23% oxygen by mass, the theoretical air required is 2.67/0.23, approximately 11.5 kg. This is the stoichiometric air requirement for complete combustion.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
____________ process is meant for direct hydrogenation of coal to produce liquid fuel?
During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the____________________?
If oxygen content in the flue gas rises too high, fuel is being wasted by _______________?
When incomplete combustion loss is high, the flue gas analysis shows large amount of ________________?
Naphthalene recovered from coke oven gas is used___________________?
Grindability index of a coal is 100. It implies that the ___________________?