Mark the true statements?

Question

1. Actual rates are much greater than the collision frequency for ideal gas molecules
2. Exothermic reactions always have a larger activation energy for the reverse reaction than for the forward reaction
3. The half-life for a zero-order process decreases as the reaction proceeds
4. The concentration of a catalyst will never appear in a rate law

Answer 1

2 and 4 are the only true statements

Answer 2

Actual rates are less than the collision frequency for ideal gas molecules.
- only a small fraction of the collisions produces a reaction because activation energy must be overcome

Exothermic reactions always have a larger activation energy for the reverse reaction than for the forward reaction.
- the potential energy of the products in an exothermic reaction is lower than that of the reactants

The half-life for a zero-order process decreases as the reaction proceeds.
- the rate is a constant, so as the reaction proceeds, the instantaneous concentration is less than the initial concentration

The concentration of a catalyst appears in a rate law.
- the concentration of a catalyst is included in the rate constant

Answer 3

1 and 3 are false

2 and 4 are true

Answer 4

Chemisty class is back in session? you got me stumped dude, either you're really smart or I'm really dumb cause I have no clue.