Peroxyacetyl nitrate (PAN) has the chemical formula C2H3NO5 and is an important lung irritant in photochemical smog. An experiment to determine the decomposition kinetics of PAN gave the data below. Determine the order of reaction and calculate the rate constant for the decomposition of PAN.

Peroxyacetyl nitrate (PAN) has the chemical formula C2H3NO5 and is an important lung irritant in photochemical smog. An experiment to determine the decomposition kinetics of PAN gave the data below. Determine the order of reaction and calculate the rate constant for the decomposition of PAN.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter8: Properties Of Gases

Section: Chapter Questions

Problem 16QRT

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Question

11. 51 ) Peroxyacetyl nitrate (PAN) has the chemical formula C₂H₃NO₅ and is an important lung irritant in photochemical smog. An experiment to determine the decomposition kinetics of PAN gave the data below. Determine the order of reaction and calculate the rate constant for the decomposition of PAN.

Partial Pressure
Time, t (min)
of PAN (torr)
0.0
2.00 × 10-3
10.0
1.61 × 10-3
20.0
1.30 × 10-3
30.0
1.04 × 10-3
40.0
8.41 × 10-4
50.0
6.77 × 10¬+
60.0
5.45 × 10-4

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