#exerciseinvestigativequestionschapter6 #equilibria #9thchemistryplaylist
Chapter: 6 “Equilibria” CONCEPT OVERVIEW: 14 TEXT BOOK PAGE NUMBER: 92 Note: In this video the wordings are same as in the text book. Write Headings on your book. Notes are in description. Exercise Investigative Questions  i. Study the effect of heat on hydrated copper sulphate. Why does this salt look coloured and why does it lose colour upon heating? Hydrated copper sulphate (CuSO₄·5H₂O) is blue because of water molecules coordinated to copper ions. Upon heating, water is removed: CuSO₄·5H₂O (blue) → CuSO₄ (white) + 5H₂O (g) It turns white because anhydrous copper sulphate does not have water of crystallization to show the blue color.  ii. Synthesis of ammonia gas is very important industrially because it is used in the preparation of urea fertilizer. Explain the conditions you will use to get the maximum yield of ammonia. · Reaction: N₂ (g) + 3H₂ (g) ⇌ 2NH₃ (g) + heat · Best conditions for maximum yield (Haber Process): Pressure: 200 – 300 atm (high pressure favors fewer gas molecules → product side) Temperature: 450 – 500°C (moderate temperature; high enough for rate, low enough for yield) Catalyst: Finely divided iron with potassium/molybdenum promoter Continuous removal of NH₃ to shift equilibrium forward #9th #chemistry #newbook2025 #Equilibria #reversiblereaction #irreversiblereaction #Dynamicequilibrium #exerciseschapter6chemistry9th #timetoattaindynamicequilibrium #changingthephysicalconditionsofachemicalreaction #Effectofchangeinreactantofproductconcentration #Effectofchangingthetemperatureonthestateofequilibrium #Effectofchangeofpressureonthereactionatequilibrium #effectofpresenceofcatalystonthereversiblereaction #ExerciseMcqschapter6 #exerciseshortanswerschapter6 #exerciseconstructedresponsequestionschapter6 #exercisedescriptivequestionschapter6 #exerciseinvestigativequestionschapter6 #Class9Chemistry2025 #PunjabBoardChemistry9 #ChemistryChapter6Explained #9thChemistryPlaylist #LearnEquilibria #equilibriummadeeasy #problem