Question

Write a note on the concept of work, heat and internal energy.

Answer 1

Hi Heat is energy that flows between a system and its environment by virtue of a temperature difference between them. ..

. Thus, it includes only the (disordered) energy associated with the random motion of molecules of the system and can be denoted as U

. The internal energy U is simply a macroscopic variable of the system.

Answer 2

In physics, a force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force.

SI unit: joule (J)

Heat is a form of energy that can be transferred from one object to another or even created at the expense of the loss of other forms of energy.

In thermodynamics, the internal energy of a system is the total energy contained within the system. It is the energy necessary to create or prepare the system in any given state, but does not include