![]() ![]() ![]() °R in the units can be replaced by ☏, and vise versa. K in the units can be replaced by ☌, and vise versa. Specific heat of air at 1 bar (=0.1 mPa = 14.5 psi):įor full table with Isobaric heat capacity - rotate the screen! Temperatureīritish thermal unit(International table) =, degree celcius =, degree fahrenheit =, kelvin =, degree rankin =, joule =, kilocalorie(International table) =, kilogram =, kilojoule =, kilowatthour =, mole =, pound = See also other properties of Air at varying temperature and pressure: Density and specific weight at varying temperature, Density at varying pressure, Diffusion Coefficients for Gases in Air, Prandtl Number, Specific heat at varying pressure, Thermal Conductivity, Thermal Diffusivity, Properties at gas-liquid equilibrium conditions and Air thermophysical properties at standard conditions and Composition and molecular weight,Īs well as Specific heat of Ammonia, Butane, Carbon dioxide, Carbon monoxide, Ethane, Ethanol, Ethylene, Hydrogen, Methane, Methanol, Nitrogen, Oxygen, Propane and Water. Temperature Choose the actual unit of temperature: ☌ ☏ K °R Choose the actual pressure: 1 bara / 14.5 psia 10 bara / 145 psia 50 bara / 725 psia 100 bara / 1450 psia The output heat capacity is given as kJ/(kmol*K), kJ/(kg*K), kWh/(kg*K), kcal/(kg*K), Btu(IT)/(mol*°R) and Btu(IT)/(lb m*°R) The calculator below can be used to estimate the specific heat of air at constant volum or constant pressure and at given temperature and pressure. For higher accuracy - a value of C p = 1.006 kJ/kg K (equal to kJ/kg oC) or 0.2403 Btu(IT)/lb ☏ - is better.For ordinary calculations - a value of specific heat c p = 1.0 kJ/kg K (equal to kJ/kg oC) or 0.24 Btu(IT)/lb ☏ - is normally accurate enough. ![]() When calculating mass and volume flow of air in heated or cooled systems with high accuracy - the specific heat (= heat capacity) should be corrected according values in the figures and table below, or found by use of the calculator. This may influence on the accuracy of air conditioning and industrial air handling process calculations. Note! At normal atmospheric pressure of 1.013 bar - the specific heat of dry air - C P and C V - will vary with temperature. I sochoric specific heat (C v) is used for air in a constant-volume, (= isovolumetric or isometric) closed system.Isobaric specific heat (C p) is used for air in a constant pressure (ΔP = 0) system.Specific heat (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree. ![]()
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