The Maxwell-Boltzmann Distribution Curve

Question 1

What do maxwell boltzman curve show?

Answer 1

= energy of all of the molecules in a gas,liquid or solution
= starts at origin
= never touches x axis, infinite
= area under cuve shows total number of molecules

Question 2

What does under the peak show?

Answer 2

= most probable energy

Question 3

What does the mean of this energy is?

Answer 3

= slightly to the right
= particles at very high energies skew the mean to the right
=

Question 4

How does the graph show that a catalyst has been used?

Answer 4

= the activation energy is moved to the left

Question 5

How does the graph show a change in temperature?

Answer 5

= higher tempature is lower curve, more particles with high energy
= most probablt energy increases but number of particles falls
= shifts to right and height of peak falls
=

Question 6

Why should the line go through the origin?

Answer 6

= there are no molecules with no energy

Question 7

What is the peak of the curve?

Answer 7

= the most probably energy

Question 8

Where is the mean energ of particle?

Answer 8

= to the right of the curve

Question 9

What is affter the activation energy?

Answer 9

=only a small amount of particles have energy that is over the activation barrier

Question 10

How can a reaction go to completion if few particles have energy greater than EA?

Answer 10

= particles can gain energy from collisions

Question 11

When you increase the temperature what does the curve look like?

Answer 11

= area under curve remains constant
= the probable energy and the mean energy shifts to higher energy values, but number of molecules with this energy decreases