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Engineering ToolBox > Specific Heat Capacity of Dry Air

The Specific Heat Capacity of dry air varies with temperature.

Note! At normal atmospheric pressure of 1.013 bar - the specific heat of dry air - c_p - varies with temperature. This may influence on the accuracy of air condition and industrial air handling process calculations.

• For ordinary calculations - a value of c_p = 1.0 kJ/kg.^oC - normally do
• For higher accuracy - a value of c_p = 1.006 kJ/kg.^oC - is better
• For highest accuracy - the value of the specific heat capacity of air should be interpolated to the temperature