Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 6 (Q.No. 4)
4.
The mass of carbon per kg of flue gas is given by
Answer: Option
Explanation:

The mass of carbon, contained in 1 kg of flue or exhaust gases, may be calculated from the mass of carbon dioxide and carbon monoxide present in them.

We know that 1 kg of carbon produces 11/3 kg of carbon dioxide. Hence 1 kg of carbon dioxide will contain 3/11 kg of carbon. Also, 1 kg of carbon produces 7/3 kg of carbon monoxide, hence 1 kg of carbon monoxide will contain 3/7 kg of carbon.

Mass of carbon per kg of flue gas is given by:

3/11 CO2 + 3/7 CO.

Discussion:
25 comments Page 2 of 3.

Chahat sharma said:   8 years ago
Yes, you are correct @Sarfaraz.

Anurup said:   8 years ago
It think 3/11CO2 + 3/7CO.

DURGESH KUMAR DUBEY said:   9 years ago
We know that one kg of carbon produced 11/3 kg of CO2 and 7/3 kg of CO.

So per kg of this gaseous, carbon will be produced 3/11 kg of CO2 and 3/7 kg of CO.

So, according to me, no any answer is correct in above mention option.

Biplab said:   9 years ago
CO2 + CO = C.

C = 12, O2 = 32, O = 16,
CO2 = 32 + 12 = 44,
CO = 12 + 16 = 28,
CO2 + CO = C,
44 kg + 28 kg =12 kg,
44/12 kg + 28/12 =1 kg carbon,
11/3 kg + 7/3 kg = 1 kg carbon.
(2)

Sarfaraz said:   9 years ago
Mass of carbon = 12 Mass of O2 = 32.

CO2(12+32) =44 + CO (12+16) = 28.


Mass of carbon present
44/12 CO2 + 28/12 CO.
11/3 CO2 + 7/3 CO.

Suresh kamal said:   9 years ago
Please explain step by step.

Daka Hitesh said:   9 years ago
The right answer is 3/11 CO2 and 3/7 CO.

Rayudu said:   9 years ago
Flue gas is the gas exiting to the atmosphere via a flue, which is a pipe or channel for conveying exhaust gases from a fireplace, oven, furnace, boiler or steam generator.

Quite often, the flue gas refers to the combustion exhaust gas produced at power plants.

Biren Desai said:   9 years ago
Answer is wrong right answer is 3/11 co2 and 3/7 Co.

Sandeep Das said:   9 years ago
Can anyone explain the solution?


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