How to Plot Constant Temperature and Pressure Lines in Excel for Thermodynamics?

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Discussion Overview

The discussion revolves around how to plot constant temperature and pressure lines on PV and TV diagrams using Excel, as part of a thermodynamics homework assignment. Participants seek guidance on the plotting process and the underlying principles involved.

Discussion Character

  • Homework-related
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses uncertainty about how to plot the lines and mentions not having attempted the homework.
  • Another participant notes that the professor did not provide specific data but suggested plotting lines of their choice, such as T=300K and P=1atm.
  • There is a question about the relationship between pressure and volume for an ideal gas, with a follow-up confirming that air at 300K can be considered an ideal gas.
  • Some participants mention the Ideal Gas Law as a potential relevant concept, although there is uncertainty about its application.

Areas of Agreement / Disagreement

Participants generally agree that air at 300K can be treated as an ideal gas, but there is uncertainty regarding the specific relationship between pressure and volume, as well as how to proceed with the plotting in Excel.

Contextual Notes

Participants have not established a clear understanding of the Ideal Gas Law or its application to the problem, and there are missing details regarding the data needed for plotting.

tsukuba
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Homework Statement


Hello, My thermodynamics professor gave us homework to plot 3 lines of constant temperature on a PV diagram in excel and 3 lines of constant pressure on a TV diagram.
I have no clue how to do this and was wondering if someone could help me

Homework Equations


He gave us the table for Ideal-gas properties of air

The Attempt at a Solution


have not attempted since I am not sure how to do it
 
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tsukuba said:

Homework Statement


Hello, My thermodynamics professor gave us homework to plot 3 lines of constant temperature on a PV diagram in excel and 3 lines of constant pressure on a TV diagram.
I have no clue how to do this and was wondering if someone could help me

Homework Equations


He gave us the table for Ideal-gas properties of air

The Attempt at a Solution


have not attempted since I am not sure how to do it

So you have the Excel data, and just are not familiar with using the Charting Wizard?
 
he didnt give us any data. He just said Plot 3 constant temperature lines of your choice, e.g., T=300K on a single P-V diagram for air. In addition plot 3 constant pressure lines of your choice, e.g., P=1atm on a single T-V diagram for air.
 
You know what the relationship between P and V is for an ideal gas ? Can air at 300 K be considered an ideal gas ?
 
I am not sure what the relationship is but yes air at 300K can be considered an ideal gas
 
tsukuba said:
I am not sure what the relationship is

Ideal Gas Law...?
 

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