Stefan’s law

Stefan’s law, also known as the Stefan-Boltzmann law, is a fundamental law of physics that relates the total amount of energy emitted by a blackbody per unit area per unit time (i.e., its radiative flux) to its temperature. It states that the radiative flux emitted by a blackbody is proportional to the fourth power of…

Wien’s displacement law

Wien’s displacement law, named after Wilhelm Wien, states that the peak wavelength of radiation emitted by a black body is inversely proportional to its temperature. Mathematically, Wien’s displacement law can be expressed as λ_max = b/T, where λ_max is the peak wavelength of the radiation emitted by the black body, T is its temperature in…

Kirchhoff’s law

Kirchhoff’s laws refer to two fundamental laws of circuit theory that govern the behavior of electrical circuits. These laws are essential tools in circuit analysis and can be used to solve complex electrical circuits with multiple components and sources. What is Required Kirchhoff’s law Kirchhoff’s laws are fundamental laws of circuit theory and are required…

Blackbody radiation: absorptive and emissive powers

Blackbody radiation is the electromagnetic radiation emitted by a perfectly black, opaque object that absorbs all incident electromagnetic radiation. The radiation emitted by a blackbody depends on its temperature and is characterized by its spectral distribution. The absorptive power of a blackbody is a measure of its ability to absorb incident electromagnetic radiation at a…

Its Efficiency

Efficiency refers to the ability to accomplish a task or achieve a goal with minimum wasted effort or resources. It is a crucial factor in many areas, including business, manufacturing, and technology. In business, efficiency is often measured by the ratio of output to input. This can include factors such as the number of units…

Carnot engine

The Carnot engine is a theoretical heat engine that operates on a reversible thermodynamic cycle. It was developed by French physicist Sadi Carnot in 1824 and is considered to be the most efficient heat engine possible, according to the second law of thermodynamics. The Carnot engine operates between two heat reservoirs, one at a high…

Irreversible processes

Irreversible processes are processes that cannot be reversed, either naturally or artificially. In thermodynamics, an irreversible process is one in which the total entropy of the system and its surroundings increases. This increase in entropy results in a loss of useful energy, and the process cannot be reversed to return the system to its original…

Reversible

The term “reversible” refers to something that can be undone or reversed, meaning that it can be restored to its original state or condition. This concept is widely used in various fields, including science, mathematics, engineering, and computing. In science, a reversible process is one that can be reversed without any loss of energy or…

Second law of thermodynamics

In physics, the second law of thermodynamics is a fundamental principle that governs the behavior of energy and entropy in a closed system. It states that the total entropy of a closed system always increases over time, or remains constant in an ideal reversible process. Entropy is a measure of the degree of disorder or…

Its applications (only for Ideal gases)

Ideal gases have several applications in various fields such as chemistry, physics, engineering, and even meteorology. Here are some of the applications of ideal gases: These are some of the applications of ideal gases, which have a wide range of uses in various fields. What is Required Its applications (only for Ideal gases) Here are…