Experimental Rate Law
When you are given the order of reaction of all the reactants in a rate law, how do you determine the overall reaction?
Add the order of the reactants all together
What is the unit for rate of disappearance/ appearance?
M/s
It is just the concentration / time!
For the reaction
1A + 2B + 1C --> 2D + 1E with a rate law of r=k[B]2[C]
what is the overall order of the reaction?
Third order
(0+2+1) =3
What is the equation for the half life of a first order reaction?
0.693/k
Draw the graph of an endothermic reaction
I'll judge the graph :)
What is the integrated rate law equation for a first order reaction?
ln[A]=ln[A]0 -kt
For the reaction:
2A + 3B --> 4C + 5D
what is the rate of the reaction in terms of ∆A?
(-1/2) ∆A / ∆t
For the rate law:
rate = k[A]1/2[B]
what is the partial order with respect to A and B and the overall order?
(Write as a ratio, ex. 1:3:4)
0.5 : 1 : 1.5
The half life of a first order reaction is 0.100s. What is the rate constant? (include correct units)
6.93 s-1
The energy needed for a reaction to proceed from reactants to products is called...
Activation energy
Based on the information that I will give you for the reaction below, what is the order with respect to Cl2?
Equation:
2NO + Cl2 --> 2NOCl
First order
For the reaction
2A + 3B --> 4C + 5D
what is the rate of reaction in terms of ∆B?
(-1/3)∆B / ∆t
The reaction:
CHCl3 + Cl2 -->CCl4 + HCl has a rate law of r=k[CHCl3][Cl2]
If the concentration of CHCl3 is increased by a factor of 5 while the concentration of Cl2 is kept the same, the rate will increase/decrease by a factor of...
Increase by a factor of 5
What is the half life of a second order reaction if k=12.5 M-1s-1 and [A]0=0.2M?
t1/2=0.4
Draw an exothermic graph and label the activation energy
I'll judge the graph :)
Based on the information that I will give you for the reaction below, what is the order with respect to NO?
Equation:
2NO + Cl2 --> 2NOCl
Second order
For the reaction
2A + 3B --> 4C + 5D
what is the rate of reaction in terms of ∆D?
(1/5) ∆D /∆t
A reaction has a rate law of
r=k[O2][NO]2
If the concentration of NO is reduced by a factor of 2, the rate will
Be reduced by 1/4
What is the half life of a zero order reaction if k=1.4x10-3M-1s-1 and [A]0=0.2M?
t1/2= 71.429
Where is the transition state on a reaction energy diagram/graph?
(you can either write where it should be or draw a graph and label it)
The transition state should be at the peak of the reaction point
(aka the point between reactants and products)
What is the rate constant of the following reaction with the information given?
2N2O5 --> 4NO2 + O2
0.176 s-1
For the reaction
A + 3B --> 2C
how does the rate of disappearance of B compare to the rate of production of C?
The rate of a reaction is found to be double when the concentration of one reactant is quadruples. What is the order of this reaction with respect to this specific reactant?
1/2
What percentage of a material will persist after 60 minutes if the measured half life is 30 minutes?
25% will remain
What is the best thanksgiving food?
This is objective but I will judge the winner based on the given answers