Unit of heat energy in commercial use, within the EU defined: 1 thm (EC) = 100 000 BtuIT.
therm (EC)
heat, quantity of heat, energy, thermodynamic energy, enthalpy, Helmholtz function, Helmholtz free energy
Heat
British thermal unit (international table) per second foot degree Rankine
thermal conductivity
Unit of the heat capacity according to the Imperial system of units.
British thermal unit (international table) per degree Fahrenheit
heat capacity, entropy
joule
active energy
reaction energy
energy imparted, mean energy imparted
work function
radiant energy
Hartree energy
work, energy, potential energy, kinetic energy
level width, alpha disintegration energy
Solid State Physics
Nuclear Reactions and Ionizing Radiations
Mechanics
Light and Related Electromagnetic Radiations
Electricity and Magnetism
Atomic and Nuclear Physics
calorie (international table) per second centimetre kelvin
British thermal unit (thermochemical) foot per hour square foot degree Fahrenheit
calorie (international table) per gram kelvin
specific heat capacity at: - constant pressure, -constant volume,- saturation
calorie (thermochemical) per second centimetre kelvin
British thermal unit (thermochemical) inch per hour square foot degree Fahrenheit
British thermal unit (international table) foot per hour square foot degree Fahrenheit
calorie (thermochemical) per centimetre second degree Celsius
15 °C calorie
Synonym: metre squared per second (square metres/second US)
square metre per second
thermal diffusivity
diffusion coefficient, diffusion coefficient for neutron number density
kinematic viscosity
diffusion coefficient
thermal diffusion coefficient
Physical Chemistry and Molecular Physics
degree Fahrenheit hour square foot per British thermal unit (international table)
thermal insulance, coefficient of thermal insulation
calorie (thermochemical) per gram kelvin
Non SI-conforming unit of the thermal resistance according to the Imperial system of units.
degree Fahrenheit second per British thermal unit (international table)
thermal resistance
Thermal capacity & conductivity units
Units of measure grouped by quantity kind: thermal capacity & conductivity.
square metre hour degree Celsius per kilocalorie (international table)
British thermal unit (thermochemical) per degree Rankine
British thermal unit (international table) inch per hour square foot degree Fahrenheit
Derived SI unit watt divided by the product of the SI base unit metre and the unit for temperature degree Celsius.
watt per metre degree Celsius
kelvin metre per watt
Unit of heat energy in commercial use.
therm (U.S.)
watt per kelvin
thermal conductance
joule per kilogram kelvin
kilojoule per kelvin
Unit of the heat capacity (British thermal unit according to the international table according to the Rankine degree) according to the Imperial system of units divided by the unit avoirdupois pound according to the avoirdupois system of units.
British thermal unit (thermochemical) per pound degree Rankine
British thermal unit (international table) per pound degree Rankine
square metre kelvin per watt
Synonym: foot squared per second
square foot per second
calorie (thermochemical) per gram degree Celsius
Unit of head energy according to the Imperial system of units at a reference temperature of 60 °F.
British thermal unit (60 ºF)
joule per mole kelvin
molar heat capacity, molar entropy, molar gas constant
millimetre per kelvin
clo
British thermal unit (international table) per degree Rankine
Unit of heat energy according to the Imperial system of units in a reference temperature of 39 °F.
British thermal unit (39 ºF)
British thermal unit (mean)
kilocalorie (international table) per hour metre degree Celsius
Unit of heat energy according to the imperial system of units.
quad (1015 BtuIT)
Unit of heat energy according to the Imperial system of units in a reference temperature of 59 °F.
British thermal unit (59 ºF)
British thermal unit (international table) inch per second square foot degree Fahrenheit
kilocalorie (international table)
watt second
Synonym: unit
one
proton number
relative permittivity
Schmidt number
refractive index
orbital angular momentum quantum number
charge number of ion
fine structure constant
mole fraction of B, mole ratio of solute B
absolute activity
Fourier number
Reynolds number
standard absolute activity of B (in a liquid or a solid mixture)
thermal diffusion ratio, thermal diffusion factor
emissivity, spectral emissivity, emissivity at a specified wavelength, directional spectral emissivity
hyperfine structure quantum number
order of reflexion
Fourier number for mass transfer
multiplication factor, infinite medium multiplication factor, effective multiplication factor
magnetic susceptibility
Cowling number
magnetic Reynolds number
Knudsen number
poisson ratio, poisson number
Stanton number
degree of dissociation
electric susceptibility
internal conversion factor
proton number, atomic number
standard equilibrium constant
spin angular momentum quantum number
neutron number
Prandtl number
neutron yield per fission, neutron yield per absorption
Weber number
Rayleigh number
Grüneisen parameter
spectral absorption factor, spectral absorptance, spectral reflectionfactor,spectral reflectance, spectral transmission factor, spectral transmittance, spectral radiance factor
coupling coefficient, leakage coefficient
g-factor of atom or electron, g-factor of nucleus
resonance escape probability
Grashof number
optical density
transport number of ion B, current fraction of ion B
Lewis number
short-range order parameter, long-range order parameter
friction factor, coefficient of friction
Strouhal number
Peclet number
packing fraction, binding fraction
relative mass excess, relative mass defect
nucleon number, mass number
activity of solvent A, relative activity of solvent A (especially in a dilute solution), osmotic coefficient of the solvent A (especially in a dilute solution), standard absolute activity of solvent A (especially in a dilute solution)
relative density, relative mass density
microcanonical partition function, canonical partition function, grand-canonical partition function, grand partition function, molecular partition function, partition function of a molecule
Alfven number
stoichiometric number of B
activity coefficient of solute B (especially in a dilute solution),standard absolute activity of solute B (especially in a dilute solution)
nuclear spin quantum number
standard absolute activity of B (in a gaseous mixture)
Nusselt number for mass transfer
Nusselt number
ratio of the specific heat capacities, ratio of the massic heat capacity, isentropic exponent
Hartmann number
reactivity
principle quantum number
magnetic quantum number
activity coefficient of B (in a liquid as a solid mixture)
Debye-Walle factor
number of turns in a winding, number of phases, number of pairs of poles
fast fission factor
non leakage probability
luminous efficiency, spectral luminous efficiency,luminous efficiency at a specified wavelength
Froude number
Grashof number for mass transfer
Stanton number for mass transfer
thermal utilization factor
relative permeability
relative molecular mass
relative atomic mass
average logarithmic energy decrement
Landau-Ginzburg number
linear strain, relative elongation, shear strain, volume or bulk strain
Peclet number for mass transfer
coordinates trichromatic
Mach number
dissipation factor, dissipance, reflection factor, reflectance, transmission factor, transmittance, absorption factor, absorbance
Madelung constant
Euler number
(rest) mass of electron, (rest) mass of proton, (rest) mass of neutron
mobility ratio
CIE colorimetric functions
total angular momentum quantum number
lethargy
statistical weight
number of molecules or other elementary entities
Characteristic Numbers (dimensionless parameters)
Acoustics
calorie (international table) per gram degree Celsius
British thermal unit (thermochemical) inch per second square foot degree Fahrenheit
degree Fahrenheit hour per British thermal unit (international table)
British thermal unit (international table) per pound degree Fahrenheit
Unit of specific thermal resistance according to the Imperial system of units.
degree Fahrenheit hour square foot per British thermal unit (international table) inch
degree Fahrenheit second per British thermal unit (thermochemical)
British thermal unit (thermochemical) per pound degree Fahrenheit
calorie (mean)
degree Fahrenheit hour square foot per British thermal unit (thermochemical) inch
degree Fahrenheit hour square foot per British thermal unit (thermochemical)
kilojoule per kilogram kelvin
Unit of the mass-related heat capacity as quotient 1000-fold of the calorie (international table) divided by the product of the 0,001-fold of the SI base units kilogram and kelvin.
kilocalorie (international table) per gram kelvin
British thermal unit (thermochemical) per degree Fahrenheit
degree Fahrenheit hour per British thermal unit (thermochemical)
watt per metre kelvin
British thermal unit (international table)
kilocalorie (thermochemical)
joule per kelvin
massieu function, planck function
Boltzmann constant
kilocalorie (mean)
kelvin per watt
millimetre per degree Celcius metre
1000-fold of the derived SI unit watt divided by the product of the SI base unit metre and the unit for temperature degree Celsius.
kilowatt per metre degree Celsius
calorie (international table)
SI base unit metre divided by the product of the unit degree Celsius and the SI base unit metre.
metre per degree Celcius metre
Unit for quantity of heat, which is to be required for 1 g air free water at a constant pressure from 101,325 kPa, to warm up the pressure of standard atmosphere at sea level, from 19,5 °C on 20,5 °C.
calorie (20 ºC)
1000-fold of the derived SI unit watt divided by the product of the SI base unit metre and the SI base unit kelvin.
kilowatt per metre kelvin