How Do You Calculate the Average Square Speed of Argon Molecules?

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Homework Help Overview

The discussion revolves around calculating the average square speed of argon molecules, as part of a broader problem involving the properties of an ideal gas at a specified temperature and pressure. The subject area includes thermodynamics and kinetic theory of gases.

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  • Mixed

Approaches and Questions Raised

  • Participants discuss the original poster's attempts to solve parts of the problem, particularly focusing on the calculation of average square speed. There are suggestions to improve the clarity of the presented work, including the use of LaTeX for mathematical expressions.

Discussion Status

The discussion is ongoing, with some participants providing guidance on how to present the problem more effectively. There is a focus on ensuring that the original poster's work is clear and accessible for others to assist. No consensus has been reached regarding the specific calculations.

Contextual Notes

Participants note the need for clearer images and formatting in the original post, as well as the requirement to start a new thread with a more descriptive title. The original poster has expressed a need for help specifically with part C of the question.

petar rezek
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Homework Statement
3. a) Calculate the mass of argon that at 13°C, in a volume of 50 liters, presses the walls with a pressure of 5.10¹ Pa.
b) What is the internal energy of the gas at that temperature?
c) What is the average square speed of the molecules? A, (Ar) = 39,948
needed help with question C)
Relevant Equations
pv=nRT
U=NEk=3/2NkT=3/2nRT
In the images you can see what I did I need someone to check answers and show me how to do C part of question
 

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In addition to being annoyingly sideways, your images are unreadable. If you are going to ask people to do you the favor of helping you with something, you should make it easy for them, not hard.
 
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petar rezek said:
Homework Statement: 3. a) Calculate the mass of argon that at 13°C, in a volume of 50 liters, presses the walls with a pressure of 5.10¹ Pa.
b) What is the internal energy of the gas at that temperature?
c) What is the average square speed of the molecules? A, (Ar) = 39,948
needed help with question C)
Relevant Equations: pv=nRT
U=NEk=3/2NkT=3/2nRT

In the images you can see what I did I need someone to check answers and show me how to do C part of question
Welcome to PF.

Please start a new thread in the Homework Help, Introductory Physics forum, and type your work into the forum window using LaTeX for the equations. I will send you a Private Message (PM) now with some hints on how to use LaTeX.

When you repost, please also use a more descriptive thread title -- the title should reflect the question being asked in the thread. Thank you.
 

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