Ideal Gas Relations
For an ideal gas, the heat capacity is constant with temperature. Accordingly we can express the enthalpy as and the internal energy as . Thus, it can also be said that the heat capacity ratio is the ratio between the enthalpy to the internal energy:
Furthermore, the heat capacities can be expressed in terms of heat capacity ratio ( ) and the gas constant ( ):
It can be rather difficult to find tabulated information for, since is more commonly tabulated. The following relation, can be used to determine :
Where n is the amount of substance in moles.
Read more about this topic: Heat Capacity Ratio
Famous quotes containing the words ideal, gas and/or relations:
“There is no absolute point of view from which real and ideal can be finally separated and labelled.”
—T.S. (Thomas Stearns)
“Papa died in the gas chamber,
slipping blue as an undressed minnow,
gulping in the shower to wash the Jew off him.”
—Anne Sexton (1928–1974)
“Think of the many different relations of form and content. E.g., the many pairs of trousers and what’s in them.”
—Mason Cooley (b. 1927)