kinetics

Question 1

rate of reaction equation

Answer 1

rate= amount of reactant used/ product formed DIVIDED BY time

Question 2

what does the Maxwell-Boltzmann Distribution show

Answer 2

Shows the energy of gas particles

Question 3

where do we start the graph on a maxell- boltzmann distribution curve

Answer 3

NOT On (0,0) as NO particles have ZERO kinetic energy

so slightly higher

Question 4

axes of maxwell boltzman

Answer 4

y axis= no. of molecules

x axis= kinetic energy

Question 5

where is the mode on a maxwell boltzmann
where is the mean
where is the A.E

what does the area under the graph show

Answer 5

1) centre of curve ( most likely energy of particles)
2) slightly to the right and a lil bit below
3) Near the end of the curve

the total number of molecules is shown by the area under the graph

Question 6

for temperature increase how does the graph shift

Answer 6

down an right ( larger AE)

Question 7

for temperature decrease how does the graph move

Answer 7

up and left (smaller AE)

Question 8

how does a catlyst change the graph

Answer 8

moves AE to the left

• increasing activation energy
• so more particles have at least the activation energy in the catalsyed reaction

Question 9

what is a catalyst

Answer 9

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