This resource turns reaction thermodynamics into a complete, ready to use review for Grade 9-12 chemistry, covering the same NGSS standard from three different angles.

Students will answer questions such as "What role does the activation energy (Ea) play in reaction spontaneity?", "What is the relationship between ΔG and the equilibrium constant (K)?", and "What is the significance of Gibbs free energy in thermodynamics?"

What's Inside?

• 30 Multiple Choice questions as a separate print ready PDF worksheet
• 30 True or False questions as a separate print ready PDF worksheet
• 30 Short Answer questions as a separate print ready PDF worksheet
• Includes Answer Key with Explanations for all 90 questions
• 6 print ready PDF files, 27 pages in total

All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.

Ways to Use This Resource

• No prep cover lesson for a substitute teacher
• Self checking practice, since every answer key includes explanations
• Review station before a lab or quiz
• First look diagnostic to plan your unit
• Homework or review before a test

This set is part of a complete NGSS aligned chemistry unit. The unit also covers Chemical Energy Basics, Exothermic and Endothermic, Energy Diagrams, Bond Breaking and Forming, Enthalpy Change, and Measuring Energy Transfer, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.

Suitable for Grade 9-12 chemistry classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard HS-PS1-4.