Heat vs. Temperature — What's the Difference?

Heat is the transfer of thermal energy between substances at different temperatures.

Temperature is a measure of the average kinetic energy of the particles in a substance.

It is measured in units of energy such as joules or calories.

Temperature readings remain constant during phase changes.

Heat moves from a hotter object to a cooler one until equilibrium is reached.

Temperature does not depend on the size or type of object.

The flow of heat can change the state of matter.

It is measured in degrees (Celsius, Fahrenheit, Kelvin).

Heat capacity indicates how much heat is needed for a substance to change its temperature.

Temperature determines the direction of heat flow.

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.

Temperature is a physical quantity that expresses hot and cold. It is the manifestation of thermal energy, present in all matter, which is the source of the occurrence of heat, a flow of energy, when a body is in contact with another that is colder or hotter.

A form of energy associated with the kinetic energy of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.

The degree of hotness or coldness of a body or environment.

The transfer of energy from one body to another as a result of a difference in temperature or a change in phase.

A measure of the average kinetic energy of the particles in a sample of matter, expressed in terms of units or degrees designated on a standard scale.

The sensation or perception of such energy as warmth or hotness.

The degree of heat in the body of a living organism, usually about 37.0°C (98.6°F) in humans.

An abnormally high bodily temperature, as from a fever.

An abnormally high condition of body heat caused by illness; a fever.

The condition of being hot.

A measure of cold or heat, often measurable with a thermometer.

A degree of warmth or hotness

An elevated body temperature, as present in fever and many illnesses.

The warming of a room or building by a furnace or another source of energy

(thermodynamics) A property of macroscopic amounts of matter that serves to gauge the average intensity of the random actual motions of the individually mobile particulate constituents. [http://arxiv.org/pdf/physics/0004055]

A furnace or other source of warmth in a room or building

(obsolete) The state or condition of being tempered or moderated.

A hot season; a spell of hot weather.

The balance of humours in the body, or one's character or outlook as considered determined from this; temperament.

Intensity, as of passion, emotion, color, appearance, or effect.

Constitution; state; degree of any quality.

The most intense or active stage

Freedom from passion; moderation.

A burning sensation in the mouth produced by spicy flavoring in food.

Condition with respect to heat or cold, especially as indicated by the sensation produced, or by the thermometer or pyrometer; degree of heat or cold; as, the temperature of the air; high temperature; low temperature; temperature of freezing or of boiling.

Estrus.

Mixture; compound.

One of a series of efforts or attempts.

The degree of hotness or coldness of a body or environment (corresponding to its molecular activity)

Sports & Games One round of several in a competition, such as a race.

The somatic sensation of cold or heat

A preliminary contest held to determine finalists.

(Informal) Pressure; stress.

An intensification of police activity in pursuing criminals.

The police. Used with the.

(Slang) Adverse comments or hostile criticism

(Slang) A firearm, especially a pistol.

To make warm or hot.

To excite the feelings of; inflame.

(Physics) To increase the heat energy of (an object).

To become warm or hot.

To become excited emotionally or intellectually.

(uncountable) Thermal energy.

(uncountable) The condition or quality of being hot.

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

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

(uncountable) An undesirable amount of attention.

The police.

One or more firearms.

A fastball.

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

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

A stage in a competition, not necessarily a sporting one; a round.

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

(countable) A hot spell.

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

(uncountable) The output of a heating system.

(countable) A violent action unintermitted; a single effort.

To get a negative reaction from the audience, especially as a heel (or bad character).

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

(intransitive) To become hotter.

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

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

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.

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.

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.

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.

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.

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

Agitation of mind; inflammation or excitement; exasperation.

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

Fermentation.

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

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

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.

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.

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

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

The presence of heat

The sensation caused by heat energy

Intense passion or emotion

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

Utility to warm a building;

Make hot or hotter;

Provide with heat;

Arouse or excite feelings and passions;

Gain heat or get hot;

Heat is measured in joules or calories, indicating energy transfer.

Heat flows from hot to cold to reach thermal equilibrium.

Temperature is measured in degrees Celsius, Fahrenheit, or Kelvin.

Temperature measures the average kinetic energy of particles within a substance.

Yes, because heat also depends on the mass and specific heat capacity of the objects.

Heat is energy transferred between substances due to their temperature difference.

A substance with high heat capacity can absorb or release a large amount of heat with little change in temperature.

Temperature determines the direction of heat flow, from higher to lower temperature.

By measuring the amount of heat required to change the temperature of a given mass of the substance by a certain amount.

Temperature alone cannot determine the amount of heat; heat also depends on the substance's mass and heat capacity.

Temperature remains constant during a phase change while heat is absorbed or released.

Due to differences in their heat capacities, some substances require more energy to change their temperature.

Because they represent different concepts: heat is energy transfer, while temperature is a measure of thermal energy per particle.

The Kelvin scale starts at absolute zero, the point where particles have minimum kinetic energy, making it useful in scientific contexts.

Heating increases temperature unless the substance undergoes a phase change, where heat is absorbed without changing temperature.