First Law of Thermodynamics | Thermodynamics Part 3 | JEE Main 2026 Chemistry | @InfinityLearn-JEE

In this video, part of the Thermodynamics Series for JEE Main 2026 preparation, Infinity Learn JEE explains the First Law in detail.

The First Law of Thermodynamics, also known as the Law of Energy Conservation, is a fundamental principle in chemistry and physics that states that energy cannot be created or destroyed, only converted from one form to another. In the context of thermodynamics, it relates to the internal energy of a system and its interactions with the surroundings, particularly through heat and work.

The first law of thermodynamics is denoted by the equation;
ΔU = Q + W

Where,
ΔU= change in the system’s internal energy.
The algebraic total of heat transmission between the system and its surroundings is denoted by the letter q.
W denotes the system’s work interaction with its surroundings.

FAQs
►What is the 1st, 2nd, and 3rd law of thermodynamics?
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