NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics are given in this article. Thermodynamics is a branch of physics that deals with the study of the transformation of heat energy into several other forms of energy. For example, when we rub our palms together, the work done in rubbing produces heat. This process of rubbing hands denotes a Thermodynamic process.
Class 11 Physics Chapter 12 Thermodynamics is of Unit 8 which has a weightage of 20 marks along with unit 7 and Unit 9. Class 11 NCERT Solutions for Chapter 12 cover important concepts of laws of thermodynamics, Carnot Cycle, Born Haber Cycle, and Enthalpy.
Download PDF: NCERT Solutions for Class 11 Physics Chapter 12
NCERT Solutions for Class 11 Physics Chapter 12
Class 11 Physics Chapter 12 – Concepts Covered
- Thermodynamics is the branch of physics that deals with the study of the transformation of heat into other forms of energy and vice-versa.
| A collection of a large number of atoms or molecules confined within certain boundaries in a way that it has specific values of pressure (P), volume (V) and temperature (T) is known as a thermodynamic system. |
- Zeroth Law of Thermodynamics identifies thermal equilibrium and introduces the concept of temperature as a tool for identifying equilibrium.
| If two systems are in thermal equilibrium with a third system then those two systems themselves are in equilibrium with each other. |
- Work is said to be done if a system moves a certain distance in the direction of the applied force.
| It is given as dW = PdV where P refers to the pressure of the gas in the cylinder. |
- First Law of Thermodynamics is the general law of conservation of energy applied to a body or a system.
| The total change in heat energy in any system is the sum of the work done and the change in internal energy. |
- Second Law of Thermodynamics is the principle that disallows certain phenomena that are consistent with the First law of thermodynamics.
| The two statements of second law of thermodynamics are as follows – - Kelvin-Planck Statement: It is impossible to form an engine, operating in a cycle, to extract heat from a hot body and then convert it completely into work without leaving change anywhere i.e., 100% conversion of heat into work is not possible. - Clausius Statement: It is impossible for a self acting machine, operating in a cycle, without the help of any external energy to transfer heat from a cold body to a hot body. Heat can not flow itself from a colder body to a hotter body. |
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