Understanding Rate Laws

What is the primary focus when discussing rate laws?

• The effect of pressure on reaction rate

• The effect of concentration on reaction rate

• The effect of volume on reaction rate

• The effect of temperature on reaction rate

In a rate law, what does the constant 'K' represent?

• The order of the reaction

• The rate constant

• The rate of the reaction

• The concentration of the reactant

What does the term 'reaction order' refer to?

• The temperature at which a reaction is conducted

• The speed at which a reaction occurs

• The power to which the concentration of a reactant is raised in the rate law

• The number of reactants in a reaction

What is the rate of a zero-order reaction dependent on?

• The temperature of the reaction

• It is independent of the concentration of the reactant

• The concentration of the reactant

• The pressure of the system

How does the rate of a first-order reaction change with concentration?

• It is independent of concentration

• It is directly proportional to concentration

• It is inversely proportional to concentration

• It is proportional to the square of the concentration

For a second-order reaction, the rate is proportional to:

• The cube of the concentration of the reactant

• The square of the concentration of the reactant

• The inverse of the concentration of the reactant

• The concentration of the reactant

Can the order of a reaction be a fraction?

• Yes, it can be a fraction

• No, it must be an integer

• No, it must be a positive integer

• Yes, but only if it is a whole number

What is the overall order of a reaction with orders m and n for two reactants?

• The product of m and n

• The sum of m and n

• The difference between m and n

• The average of m and n

In a reaction with two reactants, how is the rate law expressed?

• Rate = K * [A]^n * [B]^m

• Rate = K * [A] - [B]

• Rate = K * [A] + [B]

• Rate = K * [A]^m * [B]^n

If a reaction is first order with respect to A and second order with respect to B, what is the overall order?

• 3

• 2

• 1

• 4