
Thermodynamics | Laws, Definition, & Equations | Britannica
5 days ago · Thermodynamics is the study of the relations between heat, work, temperature, and energy. The laws of thermodynamics describe how the energy in a system changes and …
Laws of thermodynamics | Definition, Physics, & Facts | Britannica
Nov 27, 2025 · Laws of thermodynamics, four relations underlying thermodynamics, the branch of physics concerning heat, work, temperature, and energy and the transfer of such energy. The …
Thermodynamics - Heat, Energy, Laws | Britannica
5 days ago · In order to carry through a program of finding the changes in the various thermodynamic functions that accompany reactions—such as entropy, enthalpy, and free …
Enthalpy | Definition, Equation, & Units | Britannica
Nov 18, 2025 · Thermodynamics is the study of the relations between heat, work, temperature, and energy. The laws of thermodynamics describe how the energy in a system changes and …
Thermodynamics - Energy, Heat, Work | Britannica
Aug 22, 2025 · Thermodynamics - Energy, Heat, Work: The laws of thermodynamics are deceptively simple to state, but they are far-reaching in their consequences.
Free energy | Definition, Units, Gibbs, Helmholtz, Symbol, Equation ...
Free energy, in thermodynamics, energylike property or state function of a system in thermodynamic equilibrium. Free energy has the dimensions of energy, and its value is …
Thermodynamic equilibrium | Thermal Balance, Heat Transfer
Temperature is not the equivalent of the energy of a thermodynamic system; e.g., a burning match is at a much higher temperature than an iceberg, but the total heat energy contained in …
First law of thermodynamics | Definition & Facts | Britannica
Nov 21, 2025 · First law of thermodynamics, thermodynamic relation stating that, within an isolated system, the total energy of the system is constant, even if energy has been converted …
Thermodynamics - Entropy, Heat, Energy | Britannica
Oct 15, 2025 · Thermodynamics - Entropy, Heat, Energy: The first law of thermodynamics asserts that energy must be conserved in any process involving the exchange of heat and work …
Thermodynamics - Open Systems, Energy, Entropy | Britannica
Oct 15, 2025 · In order to simplify the application of the laws of thermodynamics to open systems, parameters with the dimensions of energy, known as thermodynamic potentials, are …