catalysis and boltzman distribution

Question 1

what is a catalyst

Answer 1

a substance that increases the rate of reaction by providing the particles with an alternative pathway with a lower activation energy

Question 2

what are the 2 types of catalysts

Answer 2

homogeneous and heterogeneous

Question 3

what is a homogeneous catalyst

Answer 3

catalyst is in the same phase as the reactants

Question 4

what is a heterogeneous catalyst

Answer 4

the catalyst is in a different phase to the reactants

Question 5

what are benefits of catalysts

Answer 5

-lower temperatures and pressures are needed so saves energy and money
-enable different reactions to be used with better atom economy and less waste

Question 6

what is a maxwell-boltzmann distribution curve

Answer 6

a graph that shows the distribution of energies at a certain temperature

Question 7

what happens on a boltzmann distribution graph when the temperature is increased

Answer 7

the curve flattens and the peak shifts to the right

Question 8

what is the effect of catalysts on the boltzmann curve

Answer 8

a greater proportion of molecules have sufficient energy for an effective collision, meaning the Ec is placed before the Ea