Enthalpy vs. Heat

Enthalpynoun

In thermodynamics, a measure of the heat content of a chemical or physical system.

Enthalpynoun

(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure;

Enthalpy

Enthalpy (listen) is a property of a thermodynamic system, and is defined as the sum of the system's internal energy and the product of its pressure and volume. It is a state function used in many measurements in chemical, biological, and physical systems at a constant pressure, that is conveniently provided by the large ambient atmosphere.

Heatnoun

(uncountable) Thermal energy.

Heatnoun

(uncountable) The condition or quality of being hot.

Heatnoun

(uncountable) An attribute of a spice that causes a burning sensation in the mouth.

Heatnoun

(uncountable) A period of intensity, particularly of emotion.

Heatnoun

(uncountable) An undesirable amount of attention.

Heatnoun

The police.

Heatnoun

One or more firearms.

Heatnoun

A fastball.

Heatnoun

(uncountable) A condition where a mammal is aroused sexually or where it is especially fertile and therefore eager to mate.

Heatnoun

(countable) A preliminary race, used to determine the participants in a final race

Heatnoun

(countable) One cycle of bringing metal to maximum temperature and working it until it is too cool to work further.

Heatnoun

(countable) A hot spell .

Heatnoun

(uncountable) Heating system; a system that raises the temperature of a room or building.

Heatnoun

(uncountable) The output of a heating system.

Heatnoun

In omegaverse fan fiction, a cyclical period in which alphas and omegas experience an intense, sometimes irresistible biological urge to mate.

Heatverb

(transitive) To cause an increase in temperature of (an object or space); to cause to become hot often with "up".

Heatverb

(intransitive) To become hotter.

Heatverb

To excite or make hot by action or emotion; to make feverish.

Heatverb

To excite ardour in; to rouse to action; to excite to excess; to inflame, as the passions.

Heatverb

To arouse, to excite (sexually).

Heatnoun

A force in nature which is recognized in various effects, but especially in the phenomena of fusion and evaporation, and which, as manifested in fire, the sun's rays, mechanical action, chemical combination, etc., becomes directly known to us through the sense of feeling. In its nature heat is a mode of motion, being in general a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponderable fluid, to which was given the name caloric.

Heatnoun

The sensation caused by the force or influence of heat when excessive, or above that which is normal to the human body; the bodily feeling experienced on exposure to fire, the sun's rays, etc.; the reverse of cold.

Heatnoun

High temperature, as distinguished from low temperature, or cold; as, the heat of summer and the cold of winter; heat of the skin or body in fever, etc.

Heatnoun

Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high color; flush; degree of temperature to which something is heated, as indicated by appearance, condition, or otherwise.

Heatnoun

A single complete operation of heating, as at a forge or in a furnace; as, to make a horseshoe in a certain number of heats.

Heatnoun

A violent action unintermitted; a single effort; a single course in a race that consists of two or more courses; as, he won two heats out of three.

Heatnoun

Utmost violence; rage; vehemence; as, the heat of battle or party.

Heatnoun

Agitation of mind; inflammation or excitement; exasperation.

Heatnoun

Animation, as in discourse; ardor; fervency; as, in the heat of argument.

Heatnoun

Sexual excitement in animals; readiness for sexual activity; estrus or rut.

Heatnoun

Fermentation.

Heatnoun

Strong psychological pressure, as in a police investigation; as, when they turned up the heat, he took it on the lam.

Heatverb

To make hot; to communicate heat to, or cause to grow warm; as, to heat an oven or furnace, an iron, or the like.

Heatverb

To excite or make hot by action or emotion; to make feverish.

Heatverb

To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.

Heatverb

To grow warm or hot by the action of fire or friction, etc., or the communication of heat; as, the iron or the water heats slowly.

Heatverb

To grow warm or hot by fermentation, or the development of heat by chemical action; as, green hay heats in a mow, and manure in the dunghill.

Heat

Heated; as, the iron though heat red-hot.

Heatnoun

a form of energy that is transferred by a difference in temperature

Heatnoun

the presence of heat

Heatnoun

the sensation caused by heat energy

Heatnoun

intense passion or emotion

Heatnoun

applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

Heatnoun

a preliminary race in which the winner advances to a more important race

Heatnoun

utility to warm a building;

Heatverb

make hot or hotter;

Heatverb

provide with heat;

Heatverb

arouse or excite feelings and passions;

Heatverb

gain heat or get hot;

Heat

In thermodynamics, heat is energy in transfer to or from a thermodynamic system, by mechanisms other than thermodynamic work or transfer of matter. The various mechanisms of energy transfer that define heat are stated in the next section of this article.