## Heat |

The classical | ||||||||||||

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In **heat** is ^{[1]} The amount of heat transferred in any process can be defined as the total amount of transferred energy excluding any macroscopic ^{[2]}^{[3]}^{[4]}^{[5]}^{[6]} When two systems with different ^{[7]}^{[8]}^{[9]} By contrast to

Like thermodynamic

Although heat flows spontaneously from a hotter body to a cooler one, it is possible to construct a

As a form of energy, the ^{[10]} The quantification of heat via the temperature change of a body is called

- notation and units
- classical thermodynamics
- history
- heat transfer
- latent and sensible heat
- heat capacity
- "hotness"
- see also
- references
- external links

As a form of energy, heat has the unit

Use of the symbol Q for the total amount of energy transferred as heat is due to

- "Let the amount of heat which must be imparted during the transition of the gas in a definite manner from any given state to another, in which its volume is
*v*and its temperature*t*, be called Q"^{[11]}

Heat released by a system into its surroundings is by convention a negative quantity (Q < 0); when a system absorbs heat from its surroundings, it is positive (Q > 0). Heat transfer rate, or heat flow per unit time, is denoted by . This should not be confused with a time derivative of a ^{[12]}

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norsk: Varme

norsk nynorsk: Varme

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polski: Ciepło

português: Calor

română: Căldură

русский: Теплота

Scots: Heat

sicilianu: Caluri

Simple English: Heat

slovenčina: Teplo

slovenščina: Toplota

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српски / srpski: Топлота

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suomi: Lämpö

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українська: Кількість теплоти

اردو: حرارت

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Võro: Lämmüs

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Kabɩyɛ: Fefeku