Is the PV diagram in this quasi-static cycle correct?

AI Thread Summary
The discussion centers on confusion regarding a PV diagram for a quasi-static cycle, specifically the isothermal expansion phase. The original poster questions how pressure can remain constant during isothermal expansion, noting that the problem states the pressure starts and ends at 2.00 atm. Participants clarify that pressure should change during isothermal expansion according to the ideal gas law, and they challenge the interpretation that pressure remains constant. The conversation emphasizes the need for accurate reading of the problem statement to resolve the confusion. Overall, the thread highlights the importance of understanding gas laws in thermodynamic processes.
Taylor_1989
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Homework Statement


Hi guys can someone tell me if I am wrong, or missing reading this question.

upload_2017-6-7_23-51-50.png


For part a I need to draw a PV diagram now it states that is is being expand isothermally yet when I look at the pressure it dose not change, which is confusing me beacuse it dose in a isothermal expasion other there will be no work done on the system, in the next part it say the gas is heated to a temp and the pressure increase to 2.00atm which mean it has not change at all, so it this a typo in the question or have I missed read it completely

Homework Equations

The Attempt at a Solution

 
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Taylor_1989 said:

Homework Statement


Hi guys can someone tell me if I am wrong, or missing reading this question.

View attachment 205055

For part a I need to draw a PV diagram now it states that is is being expand isothermally yet when I look at the pressure it dose not change, which is confusing me beacuse it dose in a isothermal expasion other there will be no work done on the system, in the next part it say the gas is heated to a temp and the pressure increase to 2.00atm which mean it has not change at all, so it this a typo in the question or have I missed read it completely

Homework Equations

The Attempt at a Solution

Who says the pressure doesn't change during the isothermal expansion of an ideal gas? What does the ideal gas law tell you?
 
Sorry I am not implying the pressure dose not change I think it dose, but the question is telling me it starts with an intial pressure of 2.00at and then increases to 2.00atm this is my confusion.
 
Taylor_1989 said:
Sorry I am not implying the pressure dose not change I think it dose, but the question is telling me it starts with an intial pressure of 2.00at and then increases to 2.00atm this is my confusion.
I don't see how you can possibly interpret the problem statement that way. How did you arrive at the result that pressure stays at 2 atm?
 

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