Kinetics

A reaction is found to be second order with respect to carbon monoxide. If the concentration of carbon monoxide is doubled, the rate of reaction __________.

• doubles

• remains unchanged

• increases by a factor of 4

• is reduced by a factor of 2

Which of the two graphs show a state of equilibrium being reached?

• A

• B

• A and B

• Neither.

Given the following rate law,

rate = k[A]²[B]

if [A] were doubled, what must happen to [B] to keep the rate constant?

• [B] must quadruple

• [B] must double

• [B] must be havled

• [B] must be quartered

Which of the following best describes why increasing temperature increase reaction rate?

• Activation energy is reduced.

• Collisions become more frequent.

• Collisions become more energetic.

• Collisions become more frequent and more energetic.

Which factors increase the rate of a reaction?

• increasing temperature

• increasing concentration

• increasing surface area

• all of the above

If the concentration of a reactant is increased, the reaction rate will ___________.

• increase

• decrease

• stay the same

A possible rate law for a third overall order of a reaction is __________________

• Rate = k [A]²[B]²

• Rate = k [A][B]³

• Rate = k [A]³ [B]

• Rate = k [A]²[B]

Which would dissolve faster?

• A

• B

• A and B

• None of the above

The rate of a chemical reaction is NOT affected by which of the following:

• temperature

• concentration

• particle size (surface area)

• All of these affect reaction rates

The ____________ states that atoms, ions, or molecules must collide in order to react.

• transition state

• activation energy

• rate law

• collision theory