A2 Kinetics

What is k?

• reaction rate

• equilibrium constant

• rate constant

• another reactant

Tags

NGSS.HS-PS1-5

What is y?

• order of reaction with respect to reactant A

• order of reaction with respect to reactant B

• overall order of reaction

• coefficient of reaction B in a balanced equation

How do we find the value of x and y?

• from the experiments

• from the balanced chemical equations

• from the data booklets

• from the textbooks

If the unit of the rate is moldm^-3 s^-1 and the overall order is 2, what is the unit of the rate constant above?

• s^-1

• moldm^-3 s^-1

• mol^-1dm⁶ s^-1

• mol^-1dm³ s^-1

What order is it with respect to the reactant?

• 0

• 1

• 2

• 3

What order is that with respect to this reactant?

• 0

• 3

• 2

• 1

Which of the following is NOT a feature of rate constant?

• It is a constant value at a given temperature

• the unit of rate constant depends on the overall order of the reaction involved.

• A larger value of k indicates a faster chemical reaction.

• the value of k decreases with temperature

Which of the followings cannot increase the reaction rate?

• Increase the temperature

• Add catalyst

• Use a big lump of solid reactant instead of using finely divided pieces

• Increase pressure for gaseous reactions

When the concentration of a reactant doubles, the reaction rate doesn't change. What order is it with respect to this reactant?

• 0

• 1

• 2

• 3

When the concentration of a reactant doubles, the reaction rate increases 4 times. What order is it with respect to this reactant?

• 0

• 1

• 2

• 3