14640434-n
(6)
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hydrogen, H, atomic number 1
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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 |
13591123-n
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h, Planck's constant
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the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second |
13639405-n
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H, henry
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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 |
05012272-n
(2)
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enthalpy, heat content, total heat, H
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[in thermodynamics] a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure |
06831926-n
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H, h
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the 8th letter of the Roman alphabet |