Deck 12: Kinetics

Question 1

What is the rate equation of a reaction A + B $\rightarrow$ C which has a first-rate order for [A] and zero-rate order for [B]?

A) rate = k[A]
B) rate = k[A][B]
C) rate = k[B]

Answer 1

rate = k[A]

Question 2

What is the overall rate order of a reaction A + B $\rightarrow$ C which has the following rate equation: rate = k[A][B]?

A) 2
B) 1
C) 0

Answer 2

2

Question 3

What affect does temperature have on the rate of a reaction? Outcome # 6) DOK 2)

A) the lower the temperature, the lower the kinetic energy which results in more effective collisions therefore increasing the rate of a reaction
B) the higher the temperature, the greater the kinetic energy which results in more effective collisions therefore increasing the rate of a reaction
C) the higher the temperature, the greater the kinetic energy which results in more effective collisions therefore decreasing the rate of a reaction

Answer 3

the higher the temperature, the greater the kinetic energy which results in more effective collisions therefore increasing the rate of a reaction

Question 4

What is the rate order with respect to [B] in the reaction A + B $\rightarrow$ C which has following rate equation: rate = k[B]?

A) 2
B) 1
C) 0

Question 5

What is the rate order with respect to [A] in the reaction A + B $\rightarrow$ C which has following rate equation: rate = k[B]?

A) 2
B) 1
C) 0

Question 6

Which of the following affects the rate of a reaction? Outcome # 6) DOK 1)

A) concentration, temperature, nature of reactants, presence of solvents
B) concentration, temperature, molecular size, presence of catalysts
C) concentration, temperature, nature of reactants, presence of catalysts

Question 7

A reaction where the products are higher in energy than the reactants is an example of an _____. Outcome # 6) DOK 1)

A) endothermic process
B) exothermic process
C) exergonic process

Question 8

A reaction where the products are lower in energy than the reactants is an example of an _____. Outcome # 6) DOK 1)

A) endothermic process
B) exothermic process
C) endergonic process

Question 9

Which statement best describes the effect of concentration on the rate of a reaction? Outcome # 6) DOK 2)

A) higher concentrations result in more effective collisions therefore increasing the rate of a reaction
B) higher concentrations result in less effective collisions therefore increasing the rate of a reaction
C) higher concentrations result in more collisions therefore increasing the rate of a reaction

Question 10

_____ energy is the minimum amount of energy that colliding molecules must possess in order for a chemical reaction to occur. Outcome # 6) DOK 1)

A) activation
B) bond
C) collision