Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 38)
38.
One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.
All
4/7
11/4
9/7
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 1 of 3.

Aritra Ghosh said:   1 decade ago
2CO + O2 = 2 CO2
(2*28) (16*2) (2*44)

=56 kg =32 kg =88 kg

=1 kg =32/56 kg =88/56 kg

=1 kg =4/7 kg =11/7 kg

That is 4/7 kg of O2 is required for preaparing 11/7 kg of CO2 from 1 kg CO.
(15)

Imran said:   8 years ago
1 + 4/7 = 11/ 7.
(4)

Mayur said:   9 years ago
We can also do it easily by mass conservation:

The reaction is : 2CO+O2=2CO2,

So basically Total mass of CO2 will be equal to sum of masses of CO and O2. Hence.

1+O2=11/7.

Mass of O2=11/7-1=4/7.

(The stoichiometric coefficients won't matter as we are directly doing mass conservation).
(2)

Atanu pal said:   5 years ago
Thanks for Explaining.
(1)

Rahul s said:   8 years ago
Thank you all for the given explanations.

Naveen said:   6 years ago
Thanks for explaining.

Kamlesh said:   8 years ago
Give explanation.

Sk Ajijur said:   8 years ago
Thanks for the explanation.

ATC said:   8 years ago
Nice explanation @Aritra.

A B Manju said:   8 years ago
Nice, explanation thank you.


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