temperature. The laws of thermodynamics imply the following relations between these two heat capacities (Gaskell 2003:23): C P − C V = V T α 2 β T {\displaystyle...
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Relations between heat capacities Heat capacity Specific heat capacity Speed of sound Thermodynamic equations Thermodynamics Volumetric heat capacity...
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the effective heat capacity of the gas, in that situation, will have a value intermediate between its isobaric and isochoric capacities C p {\displaystyle...
19 KB (2,776 words) - 22:52, 19 July 2024
=c_{p}/c_{V}} is the heat capacity ratio. The term specific heat may also refer to the ratio between the specific heat capacities of a substance at a given...
53 KB (8,289 words) - 01:27, 12 August 2024
}=V_{\mathrm {m} }T{\frac {\alpha _{V}^{2}}{\beta _{T}}}} (see relations between heat capacities), where V m {\displaystyle V_{\mathrm {m} }} is the molar...
3 KB (436 words) - 06:49, 7 October 2023
of the system. Important examples are the Maxwell relations and the relations between heat capacities. Thermodynamic entropy is central in chemical thermodynamics...
108 KB (13,957 words) - 02:43, 27 August 2024
This brings to two important relations between heat capacities: the constant gamma actually represents the heat capacity ratio in the ideal polytropic...
79 KB (13,172 words) - 11:30, 26 August 2024
In thermodynamics, heat is the thermal energy transferred between systems due to a temperature difference. In colloquial use, heat sometimes refers to...
75 KB (10,929 words) - 03:17, 28 August 2024
Debye model (redirect from Debye theory of specific heat capacities)
phonon contribution to the specific heat (heat capacity) in a solid. It treats the vibrations of the atomic lattice (heat) as phonons in a box in contrast...
47 KB (9,152 words) - 12:53, 29 May 2024
In thermodynamics, the Onsager reciprocal relations express the equality of certain ratios between flows and forces in thermodynamic systems out of equilibrium...
17 KB (2,568 words) - 19:29, 8 June 2024
thermodynamic relations. A specific property is the intensive property obtained by dividing an extensive property of a system by its mass. For example, heat capacity...
20 KB (2,420 words) - 20:51, 25 June 2024
Polytropic process (section Equivalence between the polytropic coefficient and the ratio of energy transfers)
{\displaystyle \gamma } is the ratio of the heat capacity at constant pressure ( C P {\displaystyle C_{P}} ) to heat capacity at constant volume ( C V {\displaystyle...
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transferred as heat, with a resultant temperature change in a body. The terms sensible heat and latent heat refer to energy transferred between a body and...
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linked by a wall permeable only to heat, and they do not change over time. Another formulation by Maxwell is "All heat is of the same kind". Another statement...
21 KB (2,658 words) - 21:00, 6 June 2024
the definition of the heat capacity by δQ = CP dT and T dS = δQ. The second term may be rewritten with one of the Maxwell relations ( ∂ S ∂ P ) T = − (...
17 KB (2,587 words) - 17:09, 10 March 2024
Laws of thermodynamics (section Onsager relations)
thermodynamic processes, such as thermodynamic work and heat, and establish relationships between them. They state empirical facts that form a basis of...
20 KB (2,858 words) - 16:40, 1 April 2024
Ideal gas (section Heat capacity)
approximation). Since the heat capacity depends on the atomic or molecular nature of the gas, macroscopic measurements on heat capacity provide useful information...
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Isobaric process (section Specific heat capacity)
mol−1 deg−1. The ratio γ {\displaystyle \gamma } of the two heat capacities is 1.4. The heat Q required to bring the gas from 300 to 600 K is Q = Δ H =...
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Carnot cycle (section Efficiency of real heat engines)
In a Carnot cycle, a system or engine transfers energy in the form of heat between two thermal reservoirs at temperatures T H {\displaystyle T_{H}} and...
25 KB (3,234 words) - 11:00, 28 August 2024
Thermal conductivity and resistivity (redirect from Heat conductivity)
conduct heat. It is commonly denoted by k {\displaystyle k} , λ {\displaystyle \lambda } , or κ {\displaystyle \kappa } and is measured in W·m−1·K−1. Heat transfer...
63 KB (8,360 words) - 12:36, 9 August 2024
In the Heat of the Night is an American police procedural crime drama television series loosely based on the 1967 film and 1965 novel of the same title...
61 KB (6,081 words) - 01:26, 22 August 2024
Thermodynamic equations (section Maxwell relations)
difference between the specific heat capacities is the same as the universal gas constant. This relation is represented by the difference between Cp and Cv:...
24 KB (3,527 words) - 15:07, 12 July 2024
Second law of thermodynamics (redirect from Heat engine statement)
that are bound by their own gravity, such as stars, can have negative heat capacities. As they contract, both their total energy and their entropy decrease...
106 KB (15,487 words) - 18:46, 16 July 2024
Thermoelectric effect (redirect from Peltier device or Peltier heat pump)
different temperature on each side. Conversely, when a voltage is applied to it, heat is transferred from one side to the other, creating a temperature difference...
30 KB (3,881 words) - 04:46, 26 August 2024
Heat transfer physics describes the kinetics of energy storage, transport, and energy transformation by principal energy carriers: phonons (lattice vibration...
67 KB (9,679 words) - 21:11, 23 July 2024
History of thermodynamics (redirect from Theory of heat)
conductivity and that differences in sensation arose from their different heat capacities. Suggestions that this might not be the case came from the new science...
35 KB (3,809 words) - 14:48, 5 July 2024
can be any system with a non-zero heat capacity, but it usually is a gas or liquid. During this process, some heat is normally lost to the surroundings...
28 KB (3,858 words) - 07:10, 12 July 2024
heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. A heat...
18 KB (2,386 words) - 04:14, 15 July 2024
Heated tobacco product (redirect from HeatSticks)
A heated tobacco product (HTP) is a tobacco product that heats the tobacco at a lower temperature than conventional cigarettes. These products contain...
119 KB (12,421 words) - 19:33, 16 August 2024
visualize the heat transfer during a process. For reversible (ideal) processes, the area under the T–s curve of a process is the heat transferred to...
3 KB (163 words) - 02:10, 8 January 2023