Course: Thermodynamics in Energy Engineering

The dependence of entropy temperature is simple known. It is heat capaity over temperautre. How about the dependence of entropy on pressure at constant temperature? At a first glace, it …

Mathematically

Thermodynamic properties such as temperature, pressure, volume and entropy are related with each other. Their mutual relations are called property relations or Maxwell relations, and the equations showing property relations …

Caculation of∆(G)

In this video, we focus our attention to the relation between Gibbs free energy G and enthalpy. Gibbs free energy and enthalpy are closely related. If one has experimental data …

Supercooled liquid water at – 50℃ will freeze adiabatically. ∆G, ∆S of this change? Final state might be a mixture of ice and liquid water. Liquid water and ice can …

Thermodynamic potential or fundamental function is a quantity used to represent the state of a system. We have four fundamental functions: internal energy U, enthalpy H, Helmholtz free energy F, …

The physical meaning of free energy is highlighted in this video. The free energies are “free energy”. Thermodynamic free energy is the amount of work that a system can perform. …

We can determine the reversibility of the process by looking at the total entropy change. However, total entropy change is not the system property. We need information on the surrounding …

Welcome to the 5th week of the course. This week, we focus our attention to the free energy functions. With free energies, we can determine the reversibility of the process …

This week you still examined the second law of thermodynamics, focusing on the actual entropy calculations. The third law of thermodynamics is essential for estimation of entropy. The third law …