Problem Set #12: Joule-Thompson Coefficient Analysis | The Pennsylvania State University

University:
The Pennsylvania State University
Course:
CHEM 450 | Thermodynamics
Academic year:

2024
Views:

500

Pages:

1
Author:

Alexis H.

Problem Set #12 Assigned: February 5, 2024 Due: Feb. 7, 2024 at 2:30 pm 1. In class on Monday we discussed the diagram below for the Joule-Thompson Coefficient: Note that 𝜇 (a) Describe the intermolecular forces in the heating and cooling regimes. (b) Where on this graph is a perfect graph represented? 2. Consider N2 as a van der Waals gas with 𝜋 Note: a = 1.352 atm∙L2/mol2 1 L∙atm = 101.325 J and . Note the following for N2: b = 3.87 x 10-3 L/mol (a) Find Um for the isothermal reversible expansion of nitrogen gas from 1.00 L to 20.0 L at 298 K. (b) What are the values of q and w for the process in (a)? 1. 2 (a) In the cooling regimes the intermolecular force of attraction increases, whereas in the heating regime the intermolecular force of repulsion increases (b) the perfect graph is when u = 0 9m a ΔUm b du W a ΔUm 1.352 t W ΔUm 1.2844 L atm Δ0m 1.2844 101.325 W NRT 130.14J Imo 8.314 298 In 7422J U 9 W q O W 130.14 9 7552.14 7422