Rule on these rate law claims

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   For a first order reaction the half life ignores the starting concentration.

2. Statement is true

   No

   Statement

   A catalyst raises the equilibrium constant of the reaction it speeds up.

3. Statement is true

   No

   Statement

   The order of a reaction can be read straight off the balanced equation.

4. Statement is true

   Yes

   Statement

   The rate constant of a first order reaction carries units of inverse seconds.

5. Statement is true

   Yes

   Statement

   For a zero order reaction the rate stays equal to the rate constant.

6. Statement is true

   No

   Statement

   A catalyst speeds up the forward reaction and leaves the reverse alone.

Instructions

Tap true or false for each claim about reaction rate, order and catalysts.

Explanation