Introduction to chemical engineering

This week’s exercise is designed to help you build a solid foundation in the basics of mass balances. We will begin by solving problems involving systems with a single unit. Once you're comfortable, we will move on to more complex tasks involving multi-unit systems. 

We have provided the answer to the exercises. 

The detailed solution will be released after the class

Update: There will be no lecture today, only exercise session focusing on consolidating material balances on non-reactive systems

This week's session will be dedicated to revising mass balances, covering both non-reactive and reactive systems. The focus will be on problems from previous mid-term and final exams.

Please be informed that the midterm exam is scheduled for Friday, November 15, 2024, from 14:15 to 17:15.

The exam will take place in two rooms:

• BS160
• BS170

Both rooms are located at the entrance of the CE building, on the Batochime/UNIL side. You have been assigned specific rooms for the exam, so please check the document titled Midterm Exam Room Assignments below to find your assigned seating. This document provides detailed information on where you need to be.

Please arrive 10 minutes early to ensure a smooth start. Remember to bring all necessary materials (⚠️ do not forget your physical properties tables ⚠️), including your student ID and any allowed supplies.

Exam Content: The exam will cover:

• Mass Balances: All types will be included, so please ensure you review each one.
• Energy Balance: This will focus exclusively on Non-Reactive Systems.

Today’s session will be split into two parts:

1️⃣ We’ll start by reviewing the midterm problems together and going through the solutions step by step. This is a great opportunity to clarify any doubts and strengthen your understanding.

2️⃣ After that, we’ll proceed with our usual exercise session.

Today, we will introduce Hess's Law and the use of Heat of Combustion.

The exercise session will continue last week's problems, with two quick additional problems to apply today's concepts.

Note for Problem 2: 

Cp for the HCl solution: 0.557 kJ / (mol HCl * °C)

No class will be held this week. 

Please use this time to review the material covered throughout the semester and to work through the problems from last year’s final exam.

Dear all, 

Please find below a set of revision problems that could be useful for the final exam. This set covers all the materials we have seen during the semester so we highly encourage you to have a look at it. 

It contains the following problems: 

- 1 problem on mass balance non reactive

- 1 problem on mass balance reactive

- 1 problem on energy balance non reactive 

- 2 problems on energy balance reactive

If you have any questions, feel free to contact us. 

In the meantime, we wish you a happy holiday season!

Dear students, 

Final Exam will take place on 31st January 2024 from 09h15 to 12h15 in CE16. 

Please find below your attributed number and seat.

Best of luck, 

TAs