Potenrial Energy Diagrams

Question 1

What role does catalyst play in increasing the rate of chemical reaction
A) it increases the energy of reactants making collisions more energetic
B) it provides an alternate reaction pathway with lower activation energy increasing the rate of successful collesuons

Answer 1

B) it provides an alternate reaction pathway with lower activation energy increasing the rate of successful collesuons

Question 2

How does increasing the concentration of reactants affect the rate of reaction
A) it increases the number of molecules in given space leading to more frequent collisions
B) it only effects the reaction if a catalyst is present

Answer 2

A) it increases the number of molecules in given space leading to more frequent collisions