Temperature Change in Adiabatic Process for Ideal Monatomic and Diatomic Gases

  • Thread starter Thread starter akan
  • Start date Start date
  • Tags Tags
    Thermodynamic
Click For Summary

Homework Help Overview

The discussion revolves around the temperature change of ideal monatomic and diatomic gases during an adiabatic process, specifically when work is done on the gases. Participants are exploring the implications of the work done and the relevant thermodynamic principles.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants question the relevance of equations such as pV^y = const and TV^(y-1) = const, and whether the scenario can be classified as a polytropic process. There is also inquiry about the course context to determine the appropriate approach.

Discussion Status

The discussion is ongoing, with some participants seeking clarification on the concepts involved while others have indicated they have reached a solution. There is a mix of interpretations regarding the application of thermodynamic principles.

Contextual Notes

Participants note that the problem is set within an introductory physics course, which defines various thermodynamic processes, including adiabatic, and emphasizes the absence of heat transfer in this context.

akan
Messages
58
Reaction score
0

Homework Statement


a) By how much does the temperature of an ideal monatomic gas change in an adiabatic process in which 2.0 kJ of work are done on each mole of gas?
b) By how much does the temperature of an ideal diatomic gas (with molecular rotation but no vibration) change in an adiabatic process in which 2.0 kJ of work are done on each mole of gas?

Homework Equations


Q = 0
dU = -W
W = (p_1 V_1 - p_2 V_2) / (y - 1)
pV^y = const.
TV^(y-1) = const.

The Attempt at a Solution


None, I have no idea how to approach this problem. Please help.
 
Physics news on Phys.org
Why is pV^y = const and TV^(y-1) = const relevant? Is this a polytropic process?
 
Also. What class is this for? Is it a physics course or a thermodynamics course? There are different approaches.
 
This is for an introductory physics course, and the book defines four different types of processes: Isothermal, Isometric, Isobaric, and Adiabatic (no heat transfer). I think I am supposed to use one of those, and it would be adiabatic since the problem mentions it.
 
I have managed to solve this problem. Thank you.
 

Similar threads

Closed cycle of an ideal gas
  • · Replies 3 ·
Replies
3
Views
2K
Adiabatic process of monatomic gas problem
  • · Replies 3 ·
Replies
3
Views
4K
Calculating ΔE Difference for 2 Samples of Monatomic Ideal Gas
  • · Replies 4 ·
Replies
4
Views
2K
Energy of a Gas in equilibrium with BB-radiation
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Movable Wall in an Adiabatic System: Same Final Temperature?
  • · Replies 8 ·
Replies
8
Views
2K
Work done in adiabatic process vs work done in isothermal
  • · Replies 2 ·
Replies
2
Views
3K
What is the molar heat capacity of an ideal gas at constant pressure and volume?
  • · Replies 5 ·
Replies
5
Views
3K
Finding both temperature and the amount of gas added
  • · Replies 6 ·
Replies
6
Views
2K
Why is temperature constant after gas has expanded?
  • · Replies 33 ·
2
Replies
33
Views
3K
Adiabatic Expansion of Pressurized Air in a Piston-Cylinder Setup
  • · Replies 8 ·
Replies
8
Views
2K