.png?fm=jpg "Energy Surfaces and Spontaneous Reactions")
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About This Simulation
Learn the core concepts of thermodynamics and discover how chemical reactions can be represented with energy surfaces. Determine which chemical reactions are spontaneous.
Learning Objectives
- Define the core thermodynamics concepts of entropy, enthalpy, and free Gibbs energy
- Explain the second law of thermodynamics
- Understand and apply the concept of reaction spontaneity
- Explain the differences between the enthalpy of combustion, and enthalpy of formation
- Present Hess's law in connection with performing enthalpy change calculations
- Present the concepts of exothermic and endothermic reactions
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About This Simulation
Lab Techniques
Related Standards
- PS3.B-H2
- Chemistry 9.3 Gibbs free energy and thermodynamic favorability
- Chemistry 15.2 Entropy and spontaneity
Learn More About This Simulation
This short, targeted simulation is adapted from the full-length “Basic Chemistry Thermodynamics” simulation.
Energy is one of the great subject matters of our time, but what is energy actually? In this simulation you will learn the fundamental thermodynamic concepts of enthalpy, entropy and Gibbs free energy. You will study chemical reactions and Hess’s law with an energy surface. Learn about entropy and reaction spontaneity. Can you determine which chemical reactions are spontaneous?
Exothermic and endothermic reactions
In this simulation, you can play around with the energy levels of reactants and products on a virtual energy surface to visualise the enthalpy of the reaction and learn about the difference between endothermic and exothermic reactions. Next visualise the combustion of propane on the energy surface and use Hess’s law to calculate the overall enthalpy from the enthalpies of reaction and formation.
The fundamental concepts of thermodynamics
The second law of thermodynamics and the core concepts of enthalpy, entropy and Gibbs free energy are introduced in this simulation. Discover the second law of thermodynamic and the concept of entropy then apply what you learnt to the reaction on the energy surface. Understand the relationship between enthalpy, entropy, and gibbs free energy. The concept of reaction spontaneity is introduced and linked to the concept of Gibbs free energy.
Spontaneous reactions
The temperature dependence of gibbs free energy and how this impacts reaction spontaneity is explored in an interactive game. Work out which chemical reactions are spontaneous and make a hypothesis about whether they remain spontaneous at higher temperatures. Explore the change in gibbs free energy and as the temperature changes. Will your hypothesis be correct?
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Related Course
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.png?fm=jpg&w=450&h=400 "Energy Surfaces and Spontaneous Reactions")
Energy Surfaces and Spontaneous Reactions
Learn the core concepts of thermodynamics and discover how chemical reactions can be represented with energy surfaces. Determine which chemical reactions are spontaneous.
Pipetting: Master the technique
Micropipettes are the extended arm of every biochemist. In this simulation, you will learn the art of pipetting in a hands-on experiment, as you try to determine the protein content of a corn cob. Will you be able to help LabsterFood Inc. create a breed of corn that contains enough essential amino acids to fulfil a person’s daily requirements? After playing this simulation, you’ll be ready to show off your pipetting skills when you enter the lab for the first time.
Advanced Acids and Bases
Join us in in the exploration of acids and bases and learn all the advanced terms used in chemistry.
For Science Programs Providing a Learning Advantage
North Dakota State College of Science
“They did the simulation at home, then completed the in-person lab within 30 minutes, no questions asked, and passed the quiz with flying colors.”
Lecturer in Human Physiology
University of Westminster
"I saw some of the students who clearly didn’t necessarily like sitting there reading a book discover they could turn on Labster and keep up with the rest of the class because it spoke to them.
Modesto City Schools
"Having something that's engaging for the students gives teachers that opportunity to breathe and get excited again. Because they're seeing the kids light up, they're seeing the kids engage with content."
Wenatchee Valley College
"The question always is, ‘Can we demonstrate that the students are meeting course outcomes?’ Check! We can do that.”
San José State University
"We surveyed over 400 students. More than 90% thought Labster was easy to navigate, and that it was fun, but more importantly, most of them felt confident that they could execute the labs in person. And that confidence is a big deal."
FAQs
Find answers to frequently asked questions.
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