This senior Chemistry worksheet provides students with a clear, structured understanding of the equilibrium constant (Kc), how it relates to equilibrium yield and extent of reaction, and why temperature is the only factor that changes Kc. Through guided explanations, scaffolded questions, and exam-style practice, students learn to interpret Kc values, distinguish between reactant-favoured and product-favoured systems, and correctly explain the effects of temperature changes in endothermic