Final Spring 2014 Flashcards
0
Q
Small K
A
Slow reaction
1
Q
Large K
A
Fast reaction
2
Q
ln[A] vs t is linear…
A
first order
slope = -k
3
Q
Rate determining step
A
the slow step in a mechanism that determines the overall rate
4
Q
Collisional model
A
- molecules must collide to react
- collisions must have the right orientation
- collisions must have enough energy
5
Q
Activation complex
A
minimum energy needed for reactants to turn to products
6
Q
Reaction rate near room temp
A
reaction rate doubles for each 10 degree rise in temperature
7
Q
catalyst
A
- in increases rate of reaction without itself being used up
- lowers activation barrier
8
Q
K - Equilibrium constant
A
- each reaction has its own K, which is constant at a given temperature
- K reverse 1/K if flip reaction
- Pure solids and liquids are not included
9
Q
Large K
A
equilibrium lies largely to the right
10
Q
Small K
A
equilibrium lies largely to the left
11
Q
Q=K when
A
at equilibrium
12
Q
Q comes out less than K
A
Q < K
not enough product, must shift to the right
13
Q
Q > K
A
not enough reactant, must shift to the left
14
Q
Bronsted Lowry Definition
A
Acid - proton donor
Base - proton acceptor
15
Q
conj base
A
what is left after H+ is donated
