# Apen tutorial 1: Physical properties

This class is given by Catarina Braz (catarina.braz@epfl.ch).

## Overview

In this class, you will learn how to choose physical property models for pure components and binary mixtures.

## Questions
 
Please consider the binary system acetone(1)/methanol(2) 

1. Analyse how the vapour pressure and the enthalpy of vaporization of each component change with the temperature 

*Answer 1:*

2. Find a thermodynamic model that allows you to simulate the separation of acetone (1) and methanol (2) at 1 atm. Suggestion: Retrieve the experimental liquid-vapour equilibrium data from the NIST ThermoData Engine, and compare the IDEAL, Peng-Robinson and NRTL models with the experimental points. 
Estimate new parameters for the NRTL thermodynamic model. 

*Answer 2:*
