The rate constant __________ as temperature increases and __________ as catalyst is added.

You are analyzing a drug. After performing some tests you observe that the drug elimination follows first order. How long will it take for 75% of drug to be eliminated from the body?

The integrated rate law of a first order reaction is given by:

where is the initial reactant concentration, is the reactant concentration at time , and is the reaction rate constant.

Which of the following are false for a first order reaction?

I. A plot of \[A\] vs. t will be linear

II. A plot of ln\[A\] vs, t will be linear

III. The rate law is proportional to ln\[A\]

IV. The rate law is independent of \[A\]

V. The rate law is proportional to \[A\]

Which of the following is true regarding a first order reaction?

The integrated form of the rate law for a 0th order reaction is given as:

Given that a reaction with rate constant is 0th order, which of the following are false?

I. The concentration of reactant does not change with time.

II. The rate is independent of reactant concentration.

III. The reaction rate constant has no affect on the final concentration of reactant over time.

Which of the following is always true regarding reaction orders?