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

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Homework Help Overview

The discussion revolves around a problem related to thermodynamics, specifically focusing on a quasi-static cycle and the interpretation of a PV diagram. Participants are examining the conditions of isothermal expansion and the behavior of pressure during this process.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the interpretation of the problem statement regarding pressure changes during isothermal expansion. There is confusion about whether the pressure remains constant or changes, particularly when the problem states that the pressure increases to 2.00 atm.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem statement. Some have raised questions about the clarity of the question and whether it contains a typo, while others are seeking to clarify the implications of the ideal gas law in this context.

Contextual Notes

There appears to be a potential misunderstanding regarding the initial and final pressures stated in the problem, which may affect the interpretation of the isothermal expansion process. Participants are considering the implications of these values on the overall understanding of the cycle.

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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