Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Please Give Details: 4) Consider the following two reaction mechanisms for the g

ID: 856066 • Letter: P

Question

Please Give Details:

4) Consider the following two reaction mechanisms for the gas phase reaction of nitrogen monoxide with chlorine gas stoic. 2N0+C12 Right arrow 2NOCI Mechanism I step 1 NO + C12 arrow NOC12 fast, reversible step 2 NOCI2 + NO Right arrow 2 NOCI slow Mechanism 2 step I NO +Cl2 Right arrow NOCI2 slow step 2 NOCI2+NO Right arrow 2NOCI fast Find the rate law corresponding to each of the above mechanisms. State the approximations used (if any) to arrive at your final result for the rate law.

Explanation / Answer


Rate of the reaction depends upon the concentration of reactants of slow step.

Mechanism: 1
2 NO + Cl2 ---> 2NOCl (slow step)

rate law :

rate of recation = K[NO]^2[Cl2].

Mechanism 2:
NOCl2 + NO ---> 2NOCl (slow step)

rate law :
rate of the reaction = K[NO][NOCl2].