Thermodynamic Equilibrium pdf

Thermodynamic Equilibrium-Chemical, Mechanical and Thermal Equilibrium, PDF

Amrit Kumar Thermodynamics Leave a Comment

Are you looking for the Thermodynamic Equilibrium? So today we will study Chemical, Mechanical and Thermal Equilibrium, PDF. Here you will get the articles of Mechanical Engineering in brief with some key points and you will get to know an enormous amount of knowledge from It. So If you find this articles helpful, please let us know in the comment box, either if any correction required too, also let us know in the comment box.

Thermodynamic Equilibrium:

Thermodynamic equilibrium is defined as, 

(When we heard words Thermodynamic Equilibrium that means Balance of Energy, work, and heat.)

The system is said to be thermodynamic equilibrium when no spontaneous change in any macroscopic property is observed as the system is isolated from its surrounding.

The term “Thermodynamic” means it is a branch of physics which deals with the heat, work, and form of energy.

The term “Equilibrium” means the state of balance of system within itself and between system and surrounding.

There is a total 3 thermodynamic equilibrium which are:

  • Chemical Equilibrium
  • Mechanical Equilibrium and
  • Thermal Equilibrium:

Thermodynamic Equilibrium:

1. Chemical Equilibrium:

A system is said to be chemical equilibrium when no chemical reaction takes place in the system or between system and surrounding.

The chemical composition will be the same throughout the system and this will not vary that system in chemical equilibrium.

This is a reversible reaction.


CaCO→ CaO + CO

When we heat Calcium Carbonate (CaCO3 ) at temperature 1073K will get CaO and CO

2. Mechanical Equilibrium:

A system is said to be mechanical equilibrium when there is no unbalanced force within the system or between system and surrounding.

It deals with the force.

The pressure in the system is the same at all points and does not change with respect to time.


Treadmill: This is gym instrument on which we run but we don move forward because the force you trying to push forward the same force acting opposite to push backward. So this is one of the best examples of mechanical equilibrium.

Preparing for Competitive Exam? If Yes, then must go for this book:

The most valuable and trusted Mechanical Objective book by R S Khurmi 5000+ Objective.

3. Thermal Equilibrium:

A system is said to be thermal equilibrium when there is no temperature difference present and the temperature remains equal at all point.


A hot cup of tea has a higher temperature as compared to surrounding so this is not in thermal equilibrium.

But when you keep this for a duration, till the temperature emits by radiation process to the environment and the surrounding temperature and a cup of tea temperature remains same that moment we can say this is in thermal equilibrium.

Thermodynamic Equilibrium PDF:

Download PDF from Telegram or Facebook group.

Join our Facebook group:  Engramritkumar Facebook

Connect telegram group:   Engramritkumar Telegram

Join our WhatsApp group: Engramritkumar WhatsApp

Today we have learned about the Chemical, Mechanical and Thermal Equilibrium, PDF. If I have missed something, kindly inform me through commenting. If you like this article, don’t forget to share it on social networks. Subscribe our website for more informative articles. Thanks for reading it. Thank you.

Print Friendly, PDF & Email
About the Author

Amrit Kumar

Facebook Twitter

Amrit is a Co-founder of Learn Mechanical Portal (Previously owned ""). He completed his diploma in Mechanical Engineering from Acharya Polytechnic Bangalore and also completed his B-Tech from Delhi. Amrit is now preparing for Govt. exams. If you need help, you can ask him regarding any suggestions in the mechanical engineering field. He loves to meet new people.

Read more from this author

Generic Category (English)300x250


Leave a Reply

Your email address will not be published. Required fields are marked *