AQA GCSE CHEMISTRY - C8: RATES & EQUILIBRIUM
QUESTIONS WITH CORRECT ANSWERS 2025
TheBrateBofBaBreactionBmeasuresBtheBwhat?B-BCORRECTBANSWERB-TheBspeedBofBaBreaction.
ToBworkBoutBtheBrateBofBaBchemicalBreaction,ByouBcanBfindBoutBhowBquickly:B
(2)B-BCORRECTBANSWERB--BtheBreactantsBareBusedBupBasBtheyBmakeBproducts,BOR
-BtheBproductsBofBtheBreactionBareBmade.
InBsomeBreactions,BhowBcouldByouBfindBoutBhowBquicklyBtheBreactantsBareBusedBupBinBsomeBreactions?B-
BCORRECTBANSWERB-BtBmeasuringBtheBmassBofBaBreactionBmixture.
FromBaBgraph,BwhereBcanByouBfindBtheBrateBofBreactionBatBanyBgivenBtime?B-BCORRECTBANSWERB-
TheBgradientBofBtheBlineBonBaBgraphBofBamountBofBreactant/productBVS.Btime.
TheBsteeperBtheBgradient,Bthe...B-BCORRECTBANSWERB-fasterBtheBreactionBisBatBthatBtime.
WhatBisBtheBequationBforBmeanBrateBofBreaction?B-BCORRECTBANSWERB-
quantityBofBreactantBusedB(orBproductBformed)B/BtimeBtaken
ForBaBcurvedBline,BhowBwouldByouBfindBtheBrateBofBreactionBonBaBgraph?B-BCORRECTBANSWERB-
ByBdrawingBaBtangentBatBoneBpoint.
TheBcollisionBtheoryBstatesBthatBreactionsBcanBonlyBhappenBif...B-BCORRECTBANSWERB-
particlesBcollideBwithBenoughBenergyBtoBchangeBintoBnewBsubstances.
WhatB2BwaysBcanByouBincreaseBtheBrateBofBreaction?B-BCORRECTBANSWERB--
BIncreasingBtheBfrequencyBofBreactingBparticlesBcollidingBwithBeachBother
-BIncreasingBtheBenergyBtheyBhaveBwhenBtheyBcollide.
NameB4BfactorsBthatBincreaseBtheBfrequencyBofBcollision,BorBtheBenergyBofBtheBparticles.B-
BCORRECTBANSWERB--BIncreasingBtheBtemperatureB
QUESTIONS WITH CORRECT ANSWERS 2025
TheBrateBofBaBreactionBmeasuresBtheBwhat?B-BCORRECTBANSWERB-TheBspeedBofBaBreaction.
ToBworkBoutBtheBrateBofBaBchemicalBreaction,ByouBcanBfindBoutBhowBquickly:B
(2)B-BCORRECTBANSWERB--BtheBreactantsBareBusedBupBasBtheyBmakeBproducts,BOR
-BtheBproductsBofBtheBreactionBareBmade.
InBsomeBreactions,BhowBcouldByouBfindBoutBhowBquicklyBtheBreactantsBareBusedBupBinBsomeBreactions?B-
BCORRECTBANSWERB-BtBmeasuringBtheBmassBofBaBreactionBmixture.
FromBaBgraph,BwhereBcanByouBfindBtheBrateBofBreactionBatBanyBgivenBtime?B-BCORRECTBANSWERB-
TheBgradientBofBtheBlineBonBaBgraphBofBamountBofBreactant/productBVS.Btime.
TheBsteeperBtheBgradient,Bthe...B-BCORRECTBANSWERB-fasterBtheBreactionBisBatBthatBtime.
WhatBisBtheBequationBforBmeanBrateBofBreaction?B-BCORRECTBANSWERB-
quantityBofBreactantBusedB(orBproductBformed)B/BtimeBtaken
ForBaBcurvedBline,BhowBwouldByouBfindBtheBrateBofBreactionBonBaBgraph?B-BCORRECTBANSWERB-
ByBdrawingBaBtangentBatBoneBpoint.
TheBcollisionBtheoryBstatesBthatBreactionsBcanBonlyBhappenBif...B-BCORRECTBANSWERB-
particlesBcollideBwithBenoughBenergyBtoBchangeBintoBnewBsubstances.
WhatB2BwaysBcanByouBincreaseBtheBrateBofBreaction?B-BCORRECTBANSWERB--
BIncreasingBtheBfrequencyBofBreactingBparticlesBcollidingBwithBeachBother
-BIncreasingBtheBenergyBtheyBhaveBwhenBtheyBcollide.
NameB4BfactorsBthatBincreaseBtheBfrequencyBofBcollision,BorBtheBenergyBofBtheBparticles.B-
BCORRECTBANSWERB--BIncreasingBtheBtemperatureB