How Does Entropy Change and Work Done Relate in a Reversible Ideal Gas Cycle?

AI Thread Summary
The discussion focuses on calculating various thermodynamic properties of a reversible cycle involving a monatomic ideal gas. Key calculations include the work done during the cycle, energy added during a specific stroke, and the efficiency of the cycle. Participants express confusion about how to utilize the provided graph for calculations but ultimately one user reports solving the problem independently. The conversation highlights the relationship between entropy change and work done in the context of ideal gas behavior. Understanding these concepts is crucial for analyzing thermodynamic cycles effectively.
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Figure 20-29 shows a reversible cycle through which 1.00 mol of a monatomic ideal gas is taken. Assume that p = 2p0, V = 2V0, p0 = 1.13*10^5 Pa, and V0 = 0.0235 m^3.

Fig. 20-29 http://s1142.photobucket.com/albums/n603/bdoneski/?action=view&current=hrw7_20-29.gif"
(a) Calculate the work done during the cycle.
J
(b) Calculate the energy added during stroke abc.
J
(c) Calculate the efficiency of the cycle.
%
(d) What is the efficiency of an ideal engine operating between the highest and lowest temperatures that occur in the cycle? (Note whether this is greater than or less than the efficiency calculated in (c).)
%

Homework Equations


Q=n(Cp)deltaT

The Attempt at a Solution


not sure how to use the graph to calculate anything. I don't know the first step to a solution. Any help would be greatly appreciated
 
Last edited by a moderator:
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nevermind i solved it
 

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