Chemical KineticsRate Law from Reaction Mechanism51Choose the best answerConsider the mechanism: Step 1: 2NO ⇌ N₂O₂ (fast equilibrium) Step 2: N₂O₂ + H₂ → N₂O + H₂O (slow) Step 3: N₂O + H₂ → N₂ + H₂O (fast) The overall rate law is:ARate = k[NO]²[H₂]BRate = k[N₂O₂][H₂]CRate = k[NO]²DRate = k[N₂O₂][H₂]² Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Chemical Kinetics#Reaction Rate52Choose the best answerThe study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as: (Sindh MDCAT 2020)AThermodynamicsBStoichiometryCElectrochemistryDChemical kinetics Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Chemical Kinetics#Rate Constant53Choose the best answerWhich symbol represents the forward rate constant?AKcBkfCkrDRf Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Chemical Kinetics#Instantaneous Rate54Choose the best answerAt start of reaction: (IBA MDCAT 2025)AAverage rate is highBInstantaneous rate is highCBoth rates are sameDBoth rates are slow Like 3 Discuss 0Share
Chemical KineticsReaction Mechanism and Intermediates55Choose the best answerFor the mechanism: Step 1: 2NO₂ → NO₃ + NO Step 2: NO₃ + CO → NO₂ + CO₂ Which species acts as an intermediate?ANO₂BNO₃CCODCO₂ Like 0 Discuss 0Share