MDCAT Chemistry Past Papers Reconduct 2023#Chemical Kinetics#Order of Reaction31Choose the best answerIn the chemical reaction N₂O₅ → NO₂, what is the order of the reaction? (MDCAT Reconduct 2023)AThird orderBFirst orderCZeroth orderDSecond order Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Chemical Kinetics#Rate Constant32Choose the best answerRate constant depends upon: (BUMHS MDCAT 2025)AVolumeBTemperatureCConcentrationDPressure Like 0 Discuss 0Share
Chemical KineticsEffect of Temperature on Reaction Rate33Choose the best answerThe reaction rate doubles for every 10°C rise in temperature. By what factor does the rate increase when temperature rises from 10°C to 40°C?A2B4C8D16 Like 0 Discuss 0Share
Chemical KineticsUnits of Second-Order Rate Constant34Choose the best answerThe unit of the rate constant for a second-order reaction involves:ANeither concentration nor timeBTime onlyCBoth concentration and timeDConcentration squared but no time Like 0 Discuss 0Share
Chemical KineticsActivation Energy and Reaction Rate35Choose the best answerA small activation energy generally means that:AFew molecules undergo effective collisions and the reaction is slow.BMore molecules can undergo effective collisions and the reaction is faster.CMolecules cannot undergo effective collisions.DRate becomes independent of temperature. Like 0 Discuss 0Share