Energy changes are very important in chemistry since almost all reactions involve a change in energy. In this module you will learn the vocabulary needed to discuss energy changes, how to measure and calculate them and why they occur. You will meet different types of energy changes and find out how to use them in energy cycles. Discussion about what drives chemical reactions leads to the concepts of entropy and free energy. The 'energy and change' thread of ideas shows the progression and development of core ideas from secondary student level through to post-16 students and beyond.
After working through this module you will be able to: