Mechanical Engineering - Thermodynamics - Discussion


The efficiency of Otto cycle depends upon the specific heats of the working substance.

[A]. Yes
[B]. No

Answer: Option B


No answer description available for this question.

Ronak said: (Jan 27, 2014)  
Efficiency is depends upon gema which obtained by Cp/Cv so basically it depends upon specific heats or not?

Gaurav said: (Nov 5, 2014)  
I do also think the same that efficiency depends upon gamma.

Karan said: (Jul 19, 2016)  
Efficiency of otto cycle depends upon compression ratio and specific heat of the material.

Antim said: (Sep 1, 2016)  
Depend on the specific heat ratio, not specific heat.

Mkumar said: (Jun 21, 2017)  
Gamma depend on Specific heats.

Reshma said: (Jul 16, 2017)  
The Answer should be A.

Deepak said: (Jul 18, 2017)  
Yes, A should be right. I also agree.

Kakar said: (Jul 18, 2017)  
The efficiency of Otto cycle depends upon the compression ratio.

Manu said: (Nov 16, 2017)  
Actually specific heats depends on gamma and R. Gamma depends on molecular structure. R depends on molecular weight. So answer B can be correct.

N K Dhuva said: (Jun 22, 2018)  
As per the formula of efficiency for the Otto cycle answer should be A "yes".

Arpit Mishra said: (Apr 9, 2019)  
What is gamma here?

Anki said: (Jul 17, 2019)  
Gamma is Cp/Cv.

It Means the ratio of specific heat at constant pressure to specific heat at constant volume.

Taj said: (Aug 5, 2019)  
Answer is correct, it depends on comprssion ratio.

Joy said: (Jan 7, 2020)  
The efficiency of Otto cycle depends only on compression ratio.

Because the derivation is carried out by taking an assumption that specific heats (Cp and Cv) are constant.

Hence, the answer should be B.

Biswajit said: (Aug 4, 2020)  
For different diatomic molecules, specific heat may vary but gamma remains constant. Which means they have same efficiency even if their specific heats are different.

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