solve 18 Photochemistry and RadiationChemistry10.16. Calculate the maximum wavelength of the radiationat will bring about dissociation of a diatomic moleculehaving a dissociation energy of 390.4 kJ mol¹.10.17. Hydrogen iodide undergoes decomposition intoH₂ + 1₂ when irradiated with radiation having a wavelengthof 207 nm. It is found that when 1 J of energy is absorbed,440 μg of HI is decomposed. How many molecules of HIare decomposed by 1 photon of rad tionthis wave-length? Suggest a mechanism that is consistent with thisresult.10.18. A 100-watt mercury-vapor lamp emits radiation of253.7 nm wavelength and may be assumed to operate with100% efficiency. If all the light emitted is absorbed by asubstance that is decomposed with a quantum yield ofnity, how long will it take for 0.01 mol to bedecomposed?10.19. Suppose that the radiation emitted by the lamp inProblem 10.18 is all absorbed by ethylene, whichdecomposes into C₂ H₂ + H₂ with a quantum yield ofunity. How much ethyne will be produced per hour?10.20. A 1000-watt mercury vapor flash lamp emitsradiation of 253.7 nm wavelength, and the duration of theflash is 1 us. Suppose that all of the radiation of a singleflash is absorbed by mercury vapor; how many atoms ofexcited mercury are formed?

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Answered: 10.16. Calculate the maximum wavelength…

10.16. Calculate the maximum wavelength of the radiation hat will bring about dissociation of a diatomic molecule having a dissociation energy of 390.4 kJ mol-¹.

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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