Unit 5: Kinetics
Showing 20 of 28 questions
Which factor does NOT affect the rate of a chemical reaction?
For a first-order reaction, a plot of which of the following vs. time gives a straight line?
A reaction has the rate law: rate = k[A]²[B]. If [A] is doubled and [B] is halved, how does the rate change?
For a first-order reaction, a plot of which of the following versus time gives a straight line?
The rate law for a reaction is determined to be rate = k[A]²[B]. If the concentration of A is doubled and the concentration of B is halved, the rate will
A catalyst increases the rate of a reaction by
For a reaction with the rate law rate = k[A][B]², the units of the rate constant k when concentrations are in mol/L and time is in seconds are
The half-life of a first-order reaction is 20 minutes. How much of the original reactant remains after 60 minutes?
According to collision theory, for a reaction to occur, the colliding molecules must have
A proposed mechanism for a reaction is: Step 1: A + B → C (slow) Step 2: C + A → D (fast) The overall reaction and rate law are
The Arrhenius equation k = Ae^(-Ea/RT) predicts that increasing temperature will
A catalyst increases reaction rate by:
For a second-order reaction, a plot of [math] vs. time gives:
The rate-determining step of a multi-step reaction is:
The Arrhenius equation shows that reaction rate increases with temperature because:
A first-order reaction has a half-life that:
An elementary reaction's rate law can be determined directly from:
Increasing surface area of a solid reactant increases reaction rate because:
The rate law for a reaction must be determined:
What is the rate law for this reaction?
Advertisement