Thermodynamics
CP, ΔCP , ΔrH, S, ΔrS, and ΔrG as a function of T: N2, H2 and NH3
Theresa Julia Zielinski, Monmouth University
An introduction to thermodynamic calculations leading to a calculaton of the equilibrium constant for a gas phase reaction.
Computing a Flame Temperature
Theresa Julia Zielinski, Monmouth University
Joseph H. Noggle (1936 - 1998), Monmouth University
Mathcad document that allows students to learn how to compute adiabatic flame tempertures.
Computing a Liquid-Vapor Phase Diagram
Sidney H. Young, University of South Alabama
A Mathcad worksheet focused on determining vapor-liquid phase diagrams for ideal and non-ideal binary mixtures for learning about activity and activity coeeficients.
Computing Enthalpies of Reaction
Theresa Julia Zielinski, Monmouth University
A symbolic mathematics document to provide hands on practice for computing heats of reaction and heat of reaction as a function of temperature given a constant value for Cp.The thermodynamic data required for a large variety of reactions is provided in the file ThDATA.xls.
Computing Liquid-Vapor Phase Diagrams for Non-ideal Binary Mixtures JCE
Franklin M.C. Chen, University of Wisconsin-Green Bay
A Mathcad worksheet focused on determining vapor-liquid phase diagrams for ideal and non-ideal binary mixtures for learning about activity and activity coeeficients. Van Laar theory and the Leavenberg-Marquardt algorithm are used.
Conventional Entropies and the Third Law of Thermodynamics JCE
Theresa Julia Zielinski, Monmouth University
Todd M. Hamilton, Georgetown College
After fitting a polynomial to heat capacity as a function of temperature data, students calculate the standard molar third law entropy for a solid, a liquid, and a gas.
Exploring Thermodynamics Using Non-traditional Systems: Elastomers and DNA JCE
Jeffrey A. Draves, Monmouth College
In this worksheet thermodynamic analysis is applied to elastomers, in particular DNA stretching to show the application of the first and second laws of thermodynamics to solids of interest to biochemists and biophysicists.
Fitting a Polynomial to CP vs. T for Ag
Theresa Julia Zielinski, Monmouth University
This document demonstrates the method of fitting a polynomial of any reasonable power to a set of data and provides an example of how to use matrix methods to solve simultaneous equations in physical chemistry.
Heat, Work and Entropy: A Molecular Level Illustration JCE
Jeffrey A. Draves, Monmouth College
This worksheet is intended to help students understand the difference between heat and work at the molecular level and to appreciate the proper use of the term (dis)order when applied to entropy. The worksheet makes use of quantum mechanics, statistical mechanics and classical thermodynamics to illustrate these differences.
Intermolecular Potentials and The Second Virial Coefficient JCE
Patrick L. Holt, Bellarmine University
A worksheet for exploring the relationship between intermolecular potentials and the second virial coefficient using the hard sphere, square-well, and Lennard-Jones potentials. Students can compute the second virial coefficient and explore the coefficient?s temperature dependence for several substances and use a computed B value to investigate the temperature dependence of the compression factor, Z.
Real Gases: Defining the Standard State and Quantifying Deviations from Ideality
Theresa Julia Zielinski, Monmouth University
Joseph H. Noggle (1936 - 1998), Monmouth University
This document has four parts. In part 1 is an exploration of the PV behavior of gases using the Redlich-Kwong equation. Part 2 determines the energy required to raise the temperature of a sample of a gas and also explores the mathematical definition of the standard state the imperfection concept to account for real properties of a gas. In part 3 is the calculation of the temperature drop and the Joule-Thomson inversion temperature for the expansion of a SO2 gas.
The Joule-Thomson Effect and Enthalpy for SO2*
Theresa Julia Zielinski, Monmouth University
An introduction to thermodynamics of real gases, computing imperfection functions, Joule-Thomson coefficients, and Joule-Thonson inversion temperatures.
Work Done During Reversible and Irreversible Isothermal Expansion of an Ideal Gas JCE
Arthur Ferguson, Worcester State College
This Mathcad template explores the implications of the Boltzmann Equation for the population of energy states as a function of temperature.