experiment 5

Question 1

3 factors that affect rate of chemical reaction

Answer 1

concentration of reactants, temperature, and presence of catalyst

Question 2

what (explain process) dictates the speed of reactions

Answer 2

how reactants OVERCOME energy barriers (ACTIVATION ENERGY)

Question 3

how can the concentration effect be better understood

Answer 3

rate law expressions

Question 4

____ dictates how changes in one reactant will affect the conversion to product

Answer 4

order of reaction

Question 5

method to obtain the order with respect to a reactant

Answer 5

Method of initial rates

Question 6

2 criteria for a chemical reaction to occur

Answer 6

1. must be in proper orientation
2. must have enough energy to overcome activation energy

Question 7

What reacting species are included in writing rate law expressions?

Answer 7

Only reactants

Question 8

How to get the total reaction order?

Answer 8

Sum of all individual reaction orders

Question 9

Effect of increasing the ff on rate of reaction

1. Concentration
2. Temperature
3. Addition of Catalyst

Answer 9

Increase rate of reaction

Question 10

in the reaction:

Rate = [A] ^ m [B] ^ n

How to get the experimental order in terms of A?

Answer 10

1. Cross out [B] ^ n
2. Matitira is:
   rate 1 / rate 2 = [A1] ^ m / [A2] ^ m
3. to get m order:

m = [log (rate1 / rate2)] / [log (A1 / A2)]

same thing with n order

Question 11

How to get the rate constant

Answer 11

K = rate / ([A]^m [B]^n)

Question 12

What are the units of the RATE CONSTANT per order?8

Answer 12

0th order = M/s
1st order = 1/s
2nd order = M^-1 s^-1
3rd order = M^-2 s^-1
4th order = M^-3 s^-1