Hess’s Law of Constant Heat Summation | Thermodynamics Class 11 & 12 CBSE/NIO

Hess’s Law of Constant Heat Summation is a fundamental principle in thermodynamics. It states that the total enthalpy change of a reaction is the same, whether the reaction takes place in a single step or in multiple steps. In this video, we explain Hess’s Law in a simple way with examples, equations, and applications for Class 11 and 12 students. ⭐ What you’ll learn in this video: ✔ Concept of Hess’s Law ✔ Why enthalpy is a state function ✔ Direct vs. stepwise reactions ✔ Numerical examples and applications 📘 Perfect for CBSE & NIOS Chemistry students preparing for Class 11, Class 12, and competitive exams like JEE & NEET.”