Law of thermodynamics

This is a list of the laws of thermodynamics along with examples of each law. Learn about heat, energy, and entropy.

First Law of Thermodynamics states that the energy of the universe remains the same. The law relates to the changes in energy states due to work and heat transfer.

Thermodynamics is the study of the relations between heat, work, temperature, and energy. The laws of thermodynamics describe how the energy in a system changes and whether the system can perform useful work on its surroundings. 1st Law of Thermodynamics - Energy cannot be created or destroyed. 2nd Law of Thermodynamics - For a spontaneous process, the entropy of the universe increases. 3rd Law of Thermodynamics - A perfect crystal at zero Kelvin has zero entropy.

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The zeroth law of thermodynamics is totally based on thermal equilibrium. Hence, the basic concept of thermal equilibrium is necessary. If two systems are placed in thermal contacts, energy may transfer and will come in equilibrium. In thermal equilibrium, there will not be any heat transfer between the system.

What is the second law of thermodynamics? Any idea! So in this article, we will be learning all about the second law, its definition, examples, equation or formula, applications, and how it answers the questions of the universe expansion and its unprecedented end!

In this article, MechStudies tries to explain all about the first law of thermodynamics like definition, how it’s related to the conservation of energy, identifying instances where the law works in everyday situations, and finally in calculating changes in the internal energy after considering the work done and heat transferred.