10.3 the Boltzmann distribution module 3

Question 1

what is known as the Boltzmann distribution?

Answer 1

spread of molecular energies in gases as some molecules move slowly with low energy and some move fast with high energy
most move close to the average speed

Question 2

rules for drawing the Boltzmann distribution graph

Answer 2

start at origin as no molecules have 0 energy
area under the curve= the total number of molecules
no maximum energy for a molecule so curve does not meet the x-axis at high energy

Question 3

what does the graph look like at a higher temperature?

Answer 3

peak is lower and shifted to the right at a higher temperature
greater proportion can over the activation energy at a higher temperature

Question 4

what does the graph look like with a catalyst?

Answer 4

more molecules have the activation energy so line is shifted to the left