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Explain Radiation
The process of radiation does not need any material medium for heat transfer. Energy is emitted by a body and…
Explain Prevost Theory Of Exchange
Way back in 1792, Pierre Prévost put forward the theory of radiation in a systematic way now known as the…
What is Thermal Conduction?
If one end of a metal rod is placed in a stove, the temperature of the other end gradually increases.…
Mechanical Equivalent Of Heat
In early days heat was not recognised as a form of energy. Heat was supposed to be something needed to…
Principle Of Calorimetry
A simple calorimeter is a vessel generally made of copper with a stirrer of the same material. The vessel is…
What is the difference between Dew and Fog
In winter nights, the atmospheric temperature goes down. The surfaces of windowpanes, flowers, grass, etc., become still colder due to…
Brownian Motion
We have assumed in kinetic theory of gases that the molecules of a gas are in constant random motion, colliding…
Thermodynamic State
A given sample of a substance has a number of parameters which can be physically measured. When these parameters are…
What is Charles’s Law
At a given pressure, the volume of a given mass of a gas is proportional to its absolute temperature. This…
What is Boyle’s Law
At a given temperature, the pressure of a given mass of a gas is inversely proportional to its volume. This…