Propane - Specific Heat vs. Temperature and Pressure

Specific heat (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree.

• Isobaric specific heat (C_p ) is used for propane in a constant pressure (ΔP = 0) system.
• I sochoric specific heat (C_v ) is used for propane in a constant-volume , (= isovolumetric or isometric ) closed system.

At ambient pressure and temperature the isobaric specific heat, C_P, of gaseous propane is 1.68 kJ/kg K or 0.402 Btu/lb °F = cal/g K, while the isochoric specific heat, C_V, is 1.48 kJ/kg K or 0.353 Btu/lb °F = cal/g K.

However, the specific heat - C_P and C_V - will vary with temperature. This may influence on the accuracy of propane conditioning and industrial propane handling process calculations. When calculating mass and volume flow of propane in heated or cooled systems with high accuracy - the specific heat  should be corrected according values in the figures and table below, or found by use of the calculator.

• Specific heat unit conversion

Online Propane Specific HeatCalculator

The calculator below can be used to estimate the specific heat of propane at constant volum(C_V ) or constant pressure(C_P ) and at given temperature. For practical purpose the heat capacity of liquid propane is constant with varying pressure up to critical point (96.7°C, 42.5 bara / 206°F, 616 psia) .
Boiling point of propane is -42.2°C / -44°F, and thus, propane is present as liquid below this temperature.

The output specific heat 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)

See also other properties of propane at varying temperature and pressure : Density and specific weight , Dynamic and Kinematic Viscosity , Prandtl number , Thermal Conductivity , Thermal diffusivity and Thermophysical properties at standard conditions , >
as well as Specific heat of Air - at Constant Pressure and Varying Temperature , Air - at Constant Temperature and Varying Pressure , Ammonia , Butane , Carbon dioxide , Carbon monoxide , Ethane , Ethanol , Ethylene , Hydrogen , Methane , Methanol , Nitrogen , Oxygen and Water .

Isobaric specific heat, C_P, of gaseous propane with varing temperature, given as °C and °F:

Isochoric specfic heat, C_V, of gaseous propane with varing temperature, given as °C and °F:





Isobaric and isochoric specific heat (specific heat), C_P and C_V, of liquid propane with varing temperature, given as °C and °F:

Isobaric specific heat, C_P , of propane at given temperatures and pressure s:

For full table with specific heat Constant Pressure  - rotate the screen!

Isochoric specific heat capacity, C_V , of propane at given temperatures and pressure s:

For full table with specific heat at Constant Volume - rotate the screen!

Unit conversion:

Specific heat unit converter

british thermal unit(International table) = [Btu(IT)], degree celcius = [°C], degree fahrenheit = [°F], degree kelvin = [K], degree rankin = [°R], joule = [J], kilocalorie(International table) = [kcal(IT)], kilogram = [kg], kilojoule = [kJ], kilowatthour = [kWh], mole = [mol], pound =[lb]

K in the units can be replaced by °C, and vise versa. °R in the units can be replaced by °F, and vise versa.

• 1 Btu/(lb °F) = 1 Btu/(lb °R) = 1 kcal(IT)/(kg °C) = 1 kcal(IT)/(kg K) = 4186.8 J/(kg K) = 0.81647 kcal(IT)/(lb °F) = 1.163x10^-3 kWh/(kg K)
• 1 J/(kg K) = 1 J/(kg °C) = 2.3885x10^-4 kcal(IT)/(kg ^oC) = 2.3885x10^-4 Btu/(lb °F) = 1.9501x10^-4 kcal(IT)/(lb °F)
• 1 kcal(IT)/(kg °C) = 1 Btu/(lb °F) = 4186.8 J/(kg K) = 0.81647 kcal(IT)/(lb °F) = 1.163x10^-3 kWh/(kg K)
• 1 kcal(IT)/(lb °F) = 1.2248 Btu/(lb °F) = 1.2248 kcal(IT)/(kg °C) = 5127.9 J/(kg K)
• 1 kJ/(kg K) = 1 kJ/(kg °C) = 1000 J/(kg K) = 1000 J/(kg °C) = 0.23885 kcal(IT)/(kg °C) = 0.23885 Btu/(lb °F) = 0.19501 kcal(IT)/(lb °F) = 2.7778x10^-4 kWh/(kg K)
• 1 kWh/(kg K) = 0.85985 kcal(IT)/(kg °C) = 0.85985 Btu/(lb °F) = 3.6 kJ/(kg K)
• 1 mol of air = 28.96546 g

Temperature ^oC
K
^oF

Length m
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Area m²
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Volume m³
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Weight kg_f
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Velocity m/s
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Pressure Pa
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mm H₂O
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inches H₂O

Flow m³/s
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US gpm
cfm