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2026 MMXC040 TEST 2.pptx
Pаrt 2: Le Châtelier’s Principle & Mоleculаr InterpretаtiоnFоr each change below, predict the equilibrium shift AND explain at the molecular level:1. Increasing TemperatureStudents must:Identify reaction as endothermic or exothermic (based on context or given data)Predict shift (left or right)Explain in terms of energy as a “reactant” or “product”Connect to collision energy distribution (qualitative acceptable)2. Increasing PressureStudents must:Identify shift toward side with fewer gas molesJustify using particle collision frequency and system “pressure relief”Explicitly count gas molecules on each side3. Adding Nitrogen Gas (N₂)Students must:Predict shift toward product formation (NH₃)Explain increase in reactant concentrationConnect to increased collision probability between N₂ and H₂