Difference between revisions of "Heat"
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{{MitoPedia | {{MitoPedia | ||
|abbr=''Q'' [J] | |abbr=''Q'', ''Q''<sub>th</sub> [J] | ||
|description='''Heat''' is a form of [[energy]]. The relationship between heat and [[work]] provides the foundation of thermodynamics, which describes transformations from an initial to a final state of a system. In energy transformations heat may pass through the boundary of the system, at an external heat flow of d<sub>e</sub>''Q''/d''t''. | |description='''Heat''' is a form of [[energy]] [J]. The relationship between heat and [[work]] provides the foundation of thermodynamics, which describes transformations from an initial to a final state of a system. In energy transformations heat may pass through the boundary of the system, at an external heat flow of d<sub>e</sub>''Q''/d''t''. | ||
|info=<u>Energy</u> | |info=<u>Energy</u> | ||
}} | }} | ||
Communicated by [[Gnaiger E]] 2019-01-05 | Communicated by [[Gnaiger E]] (2019-01-05) last update 2020-11-25 | ||
== Symbol ''Q'' == | |||
:::: To distinguish ''Q'' in thermodynamics and electricity, ''Q''<sub>th</sub> [J] is used for heat, and ''Q''<sub>el</sub> [C] for [[charge]]. | |||
{{Template:Keywords: Energy and exergy}} | |||
{{MitoPedia concepts | {{MitoPedia concepts | ||
|mitopedia concept=Ergodynamics | |mitopedia concept=Ergodynamics | ||
}} | }} | ||
Latest revision as of 18:35, 25 November 2020
- high-resolution terminology - matching measurements at high-resolution
Heat
Description
Heat is a form of energy [J]. The relationship between heat and work provides the foundation of thermodynamics, which describes transformations from an initial to a final state of a system. In energy transformations heat may pass through the boundary of the system, at an external heat flow of deQ/dt.
Abbreviation: Q, Qth [J]
Reference: Energy
Communicated by Gnaiger E (2019-01-05) last update 2020-11-25
Symbol Q
- To distinguish Q in thermodynamics and electricity, Qth [J] is used for heat, and Qel [C] for charge.
- »Bioblast links: Energy and exergy - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- Units
- Joule [J]; 1 J = 1 N·m = 1 V·C; 1 cal = 4.184 J
- Units
- Fundamental relationships
- » Energy
- » Exergy
- » Extensive quantity
- Fundamental relationships
- Contrast
- » Force
- » Pressure
- » Intensive quantity
- Contrast
- Forms of energy
- » Internal-energy dU
- » Enthalpy dH
- » Heat deQ
- » Bound energy dB
- Forms of energy
- Forms of exergy
- » Helmholtz energy dA
- » Gibbs energy dG
- » Work deW
- » Dissipated energy diD
- Forms of exergy
MitoPedia concepts:
Ergodynamics
