Work Done Calculation: Cylinder Piston System

  • Thread starter Thread starter gracy
  • Start date Start date
  • Tags Tags
    Work Work done
Click For Summary
SUMMARY

The discussion centers on the calculation of work done in a cylinder-piston system using the formula Work = ± p (external pressure) × ΔV (change in volume). It is confirmed that this formula is applicable under various conditions, not exclusively isothermal. The conversation emphasizes the need to adapt the basic equation for different thermodynamic processes, including isothermal and adiabatic conditions, while also cautioning about scenarios involving varying pressure.

PREREQUISITES
  • Understanding of thermodynamic principles, specifically isothermal and adiabatic processes.
  • Familiarity with the concept of external pressure in a cylinder-piston system.
  • Knowledge of the relationship between work, pressure, and volume change.
  • Basic mathematical skills to manipulate equations in thermodynamics.
NEXT STEPS
  • Research the derivation of work equations for isothermal and adiabatic processes.
  • Study the impact of varying pressure on work done in thermodynamic systems.
  • Explore advanced thermodynamic concepts such as the First Law of Thermodynamics.
  • Learn about practical applications of cylinder-piston systems in engineering contexts.
USEFUL FOR

Students and professionals in mechanical engineering, thermodynamics enthusiasts, and anyone involved in the design or analysis of cylinder-piston systems.

gracy
Messages
2,486
Reaction score
83
In numerical of calculation of work done by/on the system (cylinder piston )
the formula used Work=± p(external pressure)multiplied by change in volume
I want to ask should temperature be constant to apply this formula?I mean is this formula applicable only in isothermal condition?
 
Chemistry news on Phys.org
You can use this formula for work anytime( as far as i know). Other equations can be derived from this depending on whether its isothermal/adiabatic. You got to play around with the basic equation to match the data you have.
Be careful when you come across processes with varying pressure.
 
Last edited:

Similar threads

  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
Replies
2
Views
2K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
8
Views
2K
  • · Replies 8 ·
Replies
8
Views
27K