Chemical KineticsEffect of Concentration on First-Order Reaction6Choose the best answerA gaseous reaction is experimentally first order overall. If the vessel volume is reduced to one-third at constant temperature, the reactant concentration becomes three times larger. The reaction rate therefore becomes:AOne-third as largeBTwo-thirds as largeCThree times as largeDSix times as large Like 0 Discuss 0Share
Chemical KineticsEffect of Concentration on Reaction Rate7Choose the best answerThe _____ the concentration of reactants, the _____ the probability of collisions and hence the _____ the reaction rate.ALower, greater, greaterBHigher, greater, higherCHigher, lower, higherDLower, lower, higher Like 0 Discuss 0Share
Chemical KineticsEffect of Temperature on Reaction Rate8Choose 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 KineticsVariation of Reaction Rate with Time9Choose the best answerFor a typical reaction in which reactant concentrations decrease with time, the reaction rate generally:AIncreases continuouslyBDecreases as the reaction proceedsCAlways remains constantDBecomes infinite Like 0 Discuss 0Share
Chemical KineticsArrhenius Equation10Choose the best answerFor the Arrhenius equation k = Ae⁻ᴱᵃ⁄ᴿᵀ, which statement is correct?Ak is the equilibrium constant.BA is the adsorption factor.CEa is the activation energy.DR is the Rydberg constant. Like 0 Discuss 0Share