Carnot Engine Work Output w/Monatomic Gas: 288K to 497K

AI Thread Summary
A Carnot engine using a monatomic gas operates between temperatures of 288K and 497K, performing 800 J of net work. The discussion centers on calculating the heat absorbed (QH) and heat released (QC), as well as the engine's efficiency. The efficiency formula for a Carnot engine is provided, indicating it can be derived from the work output and heat absorbed. Participants express uncertainty about the missing information needed for calculations but acknowledge the importance of identifying QH and QC. Understanding these concepts is essential for solving the problem effectively.
brockjensen
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Homework Statement



A Carnot engine working with a monatomic gas operating between two temps, 288K and 497K. The engine performs 800 J of net work.



Homework Equations



Q = nRT ln (V final/V initial)


The Attempt at a Solution


I don't have enough info for the above equation. I know I am missing something just not sure what.
 
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What are you to find?
 
rock.freak667 said:
What are you to find?

Sorry, that would have been helpful.

Need to find heat absorbed and heat released, also efficiency, but I think I got that one
 
Yeah that would be helpful huh?

Need to find heat absorbed and heat released, also efficiency but I think I figured that out.
 
You should know that for a Carnot engine, the efficiency is given by

\eta = \frac{W}{Q_H}=1 - \frac{T_C}{T_H}


Now that you know this, I think you can easily find QH
 
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