Controlling reactions

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Question 4
Easy

A catalyst is added to a reaction mixture to increase the rate of reaction. Which row in the table shows the effect of the catalyst on the activation energy of the reaction and on the mass of the catalyst at the end of the reaction?

RowEffect on activation energyMass of catalyst at the end
Aincreasesremains the same
Bdecreasesdecreases
Cdecreasesremains the same
Dincreasesdecreases

Row A

Row B

Row C

Row D

Controlling reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Controlling reactions