A gas can be described by the following equation of state:

where b = 5 * 10²⁴ m3/mol and c_P^{ideal gas} = 35 J/ 1mol K2 .

(a) Develop an expression of creal P for this gas.

(b) One mole of this gas fl ows through an adiabatic porous plug. It enters at 10 bar, 300ºC and it exits at 1 bar. What is the exit temperature?

(c) Determine whether the Joule–Thompson coeffi cient, 

is positive, zero, or negative for this process. Is this result consistent with your result in part b?

(d) What is the entropy change of the universe? Is this a reversible process?

Transcribed Image Text:

P = v-b