Equilibrium constant Kp | A level Chemistry Exam Question walkthrough

This video is an A‑Level Chemistry walkthrough on Equilibrium Constant Kp, including mole fraction, partial pressures, the effect of temperature on equilibrium, and how to construct and calculate the Kp expression. You can download the PDF of the exam question using the link in the description. https://drive.google.com/file/d/106M3eHdL4O9EmNotEzFb1vwkoXOOVI_v/view?usp=sharing Directory of all my walkthroughs: https://drive.google.com/file/d/1s3I5prjbJRR1U1lcKpXO9TQpQMaVoP66/view?usp=drive_link This walkthrough shows the exam‑marking points in purple, and the thinking‑out‑loud development and annotations in red/purple, so you can clearly see what earns marks and what helps you understand the logic behind the chemistry. Timestamps 00:00 Intro music and socials 00:05 How to use this walkthrough 00:49 Mole Fraction | Units of Kp 05:11 Effect of changing temperature on equilibrium 06:13 Kp expression, calculation and units 10:10 Changing the value of Kp What this video covers Mole fraction and partial pressures Constructing the Kp expression Units of Kp How temperature affects equilibrium position How Kp changes with temperature Worked example calculations Common exam pitfalls in Kp questions Suitable for AQA, OCR A, OCR B (Salters) and Edexcel A‑Level Chemistry.