3.1.5/6 Kinetics And Equlibria Flashcards
(7 cards)
1
Q
why’s reaction slow at room temperature?
A
particles don’t have activation energy
2
Q
how can a small increase in temp lead to a large rate of reaction?
A
- many
- more molecules have energy greater than activation energy
3
Q
what’s a catalyst?
A
molecule that increases rate of reaction without being chemically changed
4
Q
why do most collisions don’t occur in a reaction?
A
energy of molecules is less than activation energy
5
Q
what happens in a maxwell graph when temp is increased?
A
area under curve to left of Ea decreases
6
Q
what’s a maxwell curve where when you increase the factor the most probable energy and mean energy stays the same?
A
increasing/decreasing pressure
7
Q
what does decreasing the pressure do for the rate of reaction?
A
- particles spread further apart
- fewer successful collisions
