Energy is the ability to do work. It exists in various forms such as kinetic, potential, thermal and chemical energy. It is a scalar quantity measured in joules (J). The law of conservation of energy states that energy can neither be created nor destroyed, only transformed from one form to another.
Class 11 Physics Chapter 10 Thermal Properties of Matter focuses on the behavior of matter under different temperature conditions. It includes concepts like heat capacity thermal expansion specific heat and the laws of thermodynamics. The chapter also explains phase changes conduction convection and radiation with real-life applications of these principles in daily life and scientific experiments.
The statement “heat is the energy in transit” states that heat refers to the flow of energy from one system or body to another due to a difference in temperature. It is not held energy but moved energy where there is a temperature gradient between objects. The transfer continues until thermal equilibrium is attained.
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