Boltzmann distrubution Flashcards
How do you draw a Boltzmann distribution curve?
Number of particles on your y axis, energy on x axis, line starts at origin, curve doesn’t touch x axis and allies line through curve labelled Ea
What does the peak represent?
The modal energy
What does the area under the curve represent?
The total number of particles
What are the particles after the Ea line?
They have energy equal to or greater than Ea so can react on collision
How do you draw a higher and lower T curve?
The lower T has a high peak which is more to the left and the high T has a lower peak further to the right and line remains above the lower T, including at the end
What is the modal temperature at a high T?
It is higher
What stays the same across temperatures?
The area under the curve
What is the difference with particles after Ea at different temps?
The area under the lower temp can react at a lower T and those between higher and lower are extra particles than react at a higher T
How do you draw a Boltzmann curve with a catalyst?
There is a higher up Ec line of the activation energy due to catalyst
What is the effect of a catalyst on the graph?
Those after Ec has enough energy on collision so a greater proportion of collisions with result in reactions
