Thermodynamics," 4th ed. (2010), pp. 42−58. due to the fact that James Clerk Maxwell suggested a similar relation in 1867.J.C. Maxwell, "On the Dynamical Theory of Gases," Phil. Trans. R. Soc. Lond. 147 (1867) 49−88, eq. (143); doi:10.1098/rstl.1867.0004.
