Intuitive Explanation of Adiabatic Condition

  • Context: High School 
  • Thread starter Thread starter Sudarshan_Hebbar
  • Start date Start date
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
5 replies · 1K views
Sudarshan_Hebbar
Messages
17
Reaction score
4
IMG_0024.webp

How to understand this derivation in a very intuitive way?
 
Last edited by a moderator:
Physics news on Phys.org
Which part are you finding unintuitive?

It is basically the conservation of energy, the ideal gas law, the definitions of specific heat, and a bunch of math. So is it the laws, the definitions, or the math?
 
Dale said:
Which part are you finding unintuitive?

It is basically the conservation of energy, the ideal gas law, the definitions of specific heat, and a bunch of math. So is it the laws, the definitions, or the math?
Mainly, The differential equation. I imagine that it Is describing the process of a small volume change in an adiabatic system and how the pressure is changing in accordance with

1. the increase in internal energy due to work done by the gas.
2. The change in Volume.

How can I connect these two outcomes to the diffential equation?
 
Sudarshan_Hebbar said:
View attachment 363379
How to understand this derivation in a very intuitive way?
The equation ##\Delta (PV)=P\Delta V+V\Delta P## is incorrect. It should read d(PV)=PdV+VdP. $$\Delta (PV)=P_2V_2-P_1V_1=\left(\frac{P_1+P_2}{2}\right)\Delta V+\left(\frac{V_1+V_2}{2}\right)\Delta P$$
 
Reply
  • Like
Likes   Reactions: TensorCalculus and Sudarshan_Hebbar
Sudarshan_Hebbar said:
Mainly, The differential equation.

It's relates dP to dV.

Sudarshan_Hebbar said:
I imagine that it Is describing the process of a small volume change in an adiabatic system and how the pressure is changing

I would just end that sentence there.