Determine half-life, order, and k from concentration-time data. The following data were collected for the gas phase decomposition of dimethyl ether at 500 °C. CH3OCH3(g) CH4(9) + H₂(g) + CO(g) [CH3OCH 3], M 7.02x10-² time, min 0 3.51x10-2 22.20 1.76x10-² 44.40 8.80×10-3 66.60 (a) What is the half-life for the reaction when [CH3OCH3] = 7.02x10-² M? (b) What is the half-life for the reaction when [CH3OCH3] = 3.51x10-2 M? (c) Is the reaction first order? If so, what is the rate constant for the reaction? (If not first order leave blank). min min min-1

Determine half-life, order, and k from concentration-time data. The following data were collected for the gas phase decomposition of dimethyl ether at 500 °C. CH3OCH3(g) CH4(9) + H₂(g) + CO(g) [CH3OCH 3], M 7.02x10-² time, min 0 3.51x10-2 22.20 1.76x10-² 44.40 8.80×10-3 66.60 (a) What is the half-life for the reaction when [CH3OCH3] = 7.02x10-² M? (b) What is the half-life for the reaction when [CH3OCH3] = 3.51x10-2 M? (c) Is the reaction first order? If so, what is the rate constant for the reaction? (If not first order leave blank). min min min-1

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 53QRT: For the reaction of iodine atoms with hydrogen molecules in the gas phase, these rate constants were...

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Question

Determine half-life, order, and k from concentration-time data.
The following data were collected for the gas phase decomposition of dimethyl ether at 500 °C.
CH3OCH3(g)-CH₂(g) + H₂(g) + CO(g)
[CH3OCH 3], M 7.02x10-²
time, min
0
3.51x10-2
22.20
K
1.76x10-²
44.40
8.80×10-3
66.60
(a) What is the half-life for the reaction when [CH3OCH3] = 7.02x10-² M?
(b) What is the half-life for the reaction when [CH3OCH3] = 3.51x10-² M?
(c) Is the reaction first order?
If so, what is the rate constant for the reaction? (If not first order leave blank).
min
min
min-1

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