Introduction to Chemical Equilibrium Phenomena-Based Lesson: Reversible Chromatic Shift of Nitrogen Dioxide Gas in Submerged Thermal Baths Presentation | Chemistry II | Grades 9–12

This is the student-facing slide presentation that introduces the phenomenon, walks the class through observations and driving questions, and frames the evidence students will use for the Phenomena-Based Lesson in the Chemistry II (grades 9–12) chapter Introduction to Chemical Equilibrium, built around the phenomenon Reversible Chromatic Shift of Nitrogen Dioxide Gas in Submerged Thermal Baths. It is sold separately from the other two parts of the set.

• What's inside: Student Slide Show (editable .pptx + PDF, 22 slides).
• Resource type: Phenomena-Based Lesson – Presentation. Format: editable Microsoft PowerPoint file plus a ready-to-print PDF.

Classroom use: Open with the phenomenon slide show, let students record ideas on the response sheet, and lead the discussion with the teacher guide. Built for Chemistry II, grades 9–12.

Sample question“Why does temperature alter the color of a sealed gas mixture back and forth indefinitely without adding or removing any atoms?”

Complete the set: Introduction to Chemical Equilibrium Phenomena-Based Lesson: Reversible Chromatic Shift of Nitrogen Dioxide Gas in Submerged Thermal Baths Teacher Discussion Guide; Introduction to Chemical Equilibrium Phenomena-Based Lesson: Reversible Chromatic Shift of Nitrogen Dioxide Gas in Submerged Thermal Baths Student Response Sheet. Scaffolded version: Introduction to Chemical Equilibrium Scaffolded Phenomena-Based Lesson: Reversible Chromatic Shift of Nitrogen Dioxide Gas in Submerged Thermal Baths Presentation.