Journal Entry:

 If the rate law for a reaction is Rate= k[NO]²[O₂], the numerical value for the rate constant (k) is 7.0 X 10³, the concentration of NO remains constant, and the initial concentration of O₂ is 2.0 x10^-2, how long will it take for the concentration of O₂ to decrease to 1.0 x 10^-2?

Learning Intentions

• We will learn how to analyze concentration vs time data to determine the rate law for zeroth, first and second order reaction. 

• We will learn how to use integrated rate laws to determine time for concentration to change.

• We will learn how to determine half life of a first order reaction.

• We will learn about the different type of catalysts.

Closing Task:

You can determine half life of a first order reaction.

Content Standards being covered:

Catalysts function by lowering the activation energy of an elementary step in a reaction mechanism, and by providing a new and faster reaction mechanism. (E.K. 4.D.1)

Important classes in catalysis include acid base catalysis , surface catalysis, and enzyme catalysis. (E.K. 4.D.2)