11Half-life of a first-order reaction is:AIndependent of initial concentrationBProportional to initial concentrationCAlways 1 hourDInversely proportional to concentrationView AnswerDiscussWorkspaceReportSaveEasy
12A catalyst increases reaction rate by:ABeing consumedBIncreasing the equilibrium constantCLowering the activation energyDRaising the temperatureView AnswerDiscussWorkspaceReportSaveEasy
13An ideal plug flow reactor assumes:ANo flowBNo mixing along the flow direction and complete mixing radiallyCComplete mixing everywhereDConstant concentration everywhereView AnswerDiscussWorkspaceReportSaveEasy
14Space time in a flow reactor is:AHalf-lifeBReaction rate ÷ volumeCReactor volume ÷ volumetric feed rateDTime to fill the reactor onlyView AnswerDiscussWorkspaceReportSaveEasy
15The unit of a first-order rate constant is:ADimensionlessB1/timeCL/mol·sDmol/L·sView AnswerDiscussWorkspaceReportSaveEasy