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Learn the definition, units, and variations of specific heat capacity, the amount of heat needed to raise the temperature of a substance by one unit. Find examples of specific heat capacities for different substances and states of matter.
Molar heat capacity of most elements at 25 °C is in the range between 2.8 R and 3.4 R: Plot as a function of atomic number with a y range from 22.5 to 30 J/mol K.. The Dulong–Petit law, a thermodynamic law proposed by French physicists Pierre Louis Dulong and Alexis Thérèse Petit, states that the classical expression for the molar specific heat capacity of certain chemical elements is ...
Learn the definition, formula and applications of the heat capacity ratio (γ), also known as the adiabatic index or the ratio of specific heats. Compare the heat capacity at constant pressure (CP) and constant volume (CV) for different gases and thermodynamic processes.
The heat equation is a partial differential equation that describes how heat flows in a homogeneous and isotropic medium. It is also related to many other topics in mathematics, physics, and engineering, such as random walks, Brownian motion, financial mathematics, and quantum mechanics.
Heat capacity is the amount of heat needed to raise the temperature of an object by one unit. The SI unit of heat capacity is joule per kelvin (J/K), and the specific heat capacity is the heat capacity per unit mass. Learn more about the variation, consequences and applications of heat capacity.
Find the specific heat capacity of air and other substances and materials at different phases and temperatures. The table includes values for isobaric, isochoric, and molar heat capacities, as well as volumetric heat capacity.
A unit increment of one kelvin is exactly 1.8 times one degree Rankine; thus, to convert a specific temperature on the Kelvin scale to the Rankine scale, x K = 1.8 x °R, and to convert from a temperature on the Rankine scale to the Kelvin scale, x °R = x /1.8 K. Consequently, absolute zero is "0" for both scales, but the melting point of ...
For a liquid–gas transition, is the specific latent heat (or specific enthalpy) of vaporization; for a solid–gas transition, is the specific latent heat of sublimation. If the latent heat is known, then knowledge of one point on the coexistence curve , for instance (1 bar, 373 K) for water, determines the rest of the curve.