h

Meanings

• a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
• a unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
• the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
• the 8th letter of the Roman alphabet
• (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure;
• "enthalpy is the amount of energy in a system capable of doing mechanical work"

Synonyms

• hydrogen
• H
• atomic number 1
• henry
• Planck's constant
• heat content
• total heat
• enthalpy

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