QUESTION 28

 

1. Assume the reaction below
           2 NO(g) + O₂(g) → 2 NO₂(g)
   proceeds via the following rate expression:
          
   Which of the following statements concerning the above chemical reaction and rate equation is/are CORRECT?

   	1.	The reaction is second-order with respect to NO.
   	2.	The rate of disappearance of O 2is two times the rate of appearance of NO 2.
   	3.	According to the balanced chemical equation, the reaction is fifth-order overall.

   		1 only
   		2 only
   		1 and 3
   		2 and 3
   		3 only