Define Thermal Equilibrium
Thermal equilibrium is the condition in which two substances in physical contact with each other exchange no heat energy. Let consider a system requiring a…
Physics
Law of Equipartition of Energy
Law of equipartition of energy states that for a dynamical system in thermal equilibrium the total energy of the system is shared equally by all…
Define Triatomic Molecule (Non-linear type)
A triatomic Molecule non-linear molecule may rotate, about the three mutually perpendicular axes, as shown in Figure. Therefore, it possesses three degrees of freedom of rotation…
Define Triatomic Molecule (Linear type)
In the case of the triatomic molecule of linear type, the centre of mass lies at the central atom. It, therefore, behaves like a diamotic…
Define Diatomic Molecule
The diatomic molecule can rotate about an axis at right angles to its own axis. Hence it has two degrees of freedom of rotational motion…
Degrees of Freedom for Translatory Motion
The number of degrees of freedom of a dynamical system is defined as the total number of co-ordinates or independent variables required to describe the…
How Pressure Exerted by a Gas?
The molecules of a gas are in a state of random motion. They continuously collide against the walls of the container. During each collision, momentum…
Postulates of Kinetic Theory of Gases
Postulates of Kinetic theory of gases (1) A gas consists of a very large number of molecules. Each one is a perfectly identical elastic sphere.…
Define Thermal Energy
According to caloric theory of heat, heat was regarded as an invisible and weightless fluid called “caloric”. The two bodies at different temperatures placed in…
Applications of Doppler Effect
Applications of Doppler Effect (i) To measure the speed of an automobile An electromagnetic wave is emitted by a source attached to a police car.…
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