5. The high-temperature decomposition of dimethyl ether (DME) is (CH3)20 (g) → CH4 (g) + H₂ (g) + CO (g) The following data are partial pressures of DME as a function of time at 504 °C: t=0 s PDME = 312 torr t = 390 s PDME = 264 torr t = 777 s PDME = 224 torr t = 1195 s PDME = 187 torr t=3155 s PDME =78.5 torr a) Show that the reaction is first order. b) What is the value of the rate constant, k? c) What is the total gas pressure at 390 s? d) What is the total gas pressure when the reaction has gone to completion? e) What is the total gas pressure at t = 1000. s?

5. The high-temperature decomposition of dimethyl ether (DME) is (CH3)20 (g) → CH4 (g) + H₂ (g) + CO (g) The following data are partial pressures of DME as a function of time at 504 °C: t=0 s PDME = 312 torr t = 390 s PDME = 264 torr t = 777 s PDME = 224 torr t = 1195 s PDME = 187 torr t=3155 s PDME =78.5 torr a) Show that the reaction is first order. b) What is the value of the rate constant, k? c) What is the total gas pressure at 390 s? d) What is the total gas pressure when the reaction has gone to completion? e) What is the total gas pressure at t = 1000. s?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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