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Use the References to access important values if needed for this question. The f

ID: 718121 • Letter: U

Question

Use the References to access important values if needed for this question. The following is a proposed mechanism for the gas phase decomposition of nitryl chloride. step 1 fast: NO2CNO2+CI step 2 slow: NO2CI+ CNO2+ Ch (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. (2) Which species acts as a catalyst? Enter formula. If none, leave box blank Which species acts as a reaction intermediate? Enter formula. If none, leave box blank (3) (4) Complete the rate law for the overall reaction that is consistent with this mechanism. Use the form k[A][B]n-where '1, is understood (so don't write it if it's a "I') for m, n etc. Rate-

Explanation / Answer

Ans 1

To get the Overall equation add the two reactions

2 NO2Cl - - - - > 2 NO2 + Cl2

Ans 2

There is no catalyst used in this reaction. Catalyst is represented as a reactant and end up in the product.

Ans 3

In the first reaction Cl is produced and in the second reaction Cl is consumed, therefore, Cl acts as a reaction intermediate.

Ans 4

Rate law for the overall reaction

Rate = k [NO2Cl]2