jewelle's mom
Anesha's naptime
Darshana the dawg
ayushi's 5
Aarush Kanduri is the goat of all time at chemistry and he has actually supported and helped many of us with our struggles in AP Chem
100

Name the four factors that affect reaction rate

  1. Surface Area

  2. Concentration

  3. Catalyst 

  4. Temperature 

100

What is the reaction rate formula?

rate=∆[A]/∆t

100

Which step is the rate determining step?

the slow one (jewelle)

100

True or false: In an endothermic reaction, reactants have more energy than products

False

100

Generally, reaction rate doubles for every ___ degree increase

10

200

What are the only two factors that affect the value ‘K’?

Temperature and the nature of the reaction

200

What is the difference between instantaneous rate of change and average rate of change?

Instantaneous is at a certain point and average rate of change is over an interval.

200

Where does a catalyst start in a mechanism and where does it end?

Starts as a reactant and ends as a product

200

The activation energy refers to the difference in energy from the peak of the graph to _____

the energy at which reactants start

200

What is the overall order of the following reaction?k[OH] [Br2]2

Third-order

300

Which reaction order (zero, first, or second) does not appear as concentration in the Rate law?

Zero order 

300

When do you take the measurement in the initial rate method?

We want to take measurements as soon as the reactants are mixed.

300

How do you identify an intermediate? 

It cancels out in the reaction mechanism

300

Calculate the activation energy of the reverse reaction of a reaction when the activation energy is 132 kJ/mol and the overall energy change is -226 kJ/mol

358 kJ/mol

300

What is the molecularity of the following reaction?

N2O2(g) + O2(g) → 2NO2(g)

400

Which graph represents first order reactions?

Time vs. ln(concentration)

400

What are the units for order 3?

(L2)(mol-2)(s-1)

400

Which graph has the slope “k” and not “-k”?

Second order (time v. 1/concentration)

400

With a zero order reaction, how does half life change?

it decreases

400

 Identify the catalyst intermediate in the following reaction.

  1. Step I: S2O8 2- + 2Fe2+ → 2SO42- + 2Fe3+

  2. Step II: 2Fe3+ + 2I- → 2Fe2+ + I2

  3. Overall Reaction: S2O8 2- + 2I-→2SO4 2- + I2

Catalyst: Fe2+

Intermediate: Fe3+

500

What is Jewelle’s mom’s occupation?

  1. Police detective

  2. Software engineer

  3. Accountant

  4. Small business owner



software engineer

500

What is the formula for half life?

  1. t1/2  = 0.693/k

500

The area of chemistry that concerns reaction rates and reaction mechanisms

Kinetics

500

The collision model states that collisions must have sufficient energy to produce the reaction. What is the other requirement that is needed for a reaction to occur according to the collision theory?

Colliding particles must be correctly oriented

500

For a chemical reaction A→B, it is found that the rate of reaction doubles when the concentration of A is increased four times. The order of the reaction is...

2

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