Answer to Question #187986 in Physical Chemistry for wiiikiii

Question

n moles of CO2 gas (T1, V1) obey a van der Waals equation of state are contained in an insulated piston-cylinder arrangement. A reversible expansion of the gas is carried out until the volume become 2V1. [CV.m = 28.80 J mol−1K −1 , a = 3.610 atm. dm6 . mol−2 , b = 4.29 x 10−2 dm3 . mol−1 ]

(a) Find the final temperature of gas as a function of n, 𝐂𝐕.𝐦 , T1, V1 and the van der Waals parameter a and b. (b) If two moles of CO2 gas involved and T1 = 350K, V1 = 40L, compute final temperature of the gas. (c) Find work done and internal energy of the gas. 

Answer 1

a. 323K

b. 314K

c. 1.6kj