HW 3 - 1.1/1 pointsAll Submissions NotesQuestion: ZumChemP6...

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1. 1/1 points All Submissions Notes Question: ZumChemP6 15.E.064. How is the rate of a reaction affected by each of the following? (a) activation energy the larger the activation energy, the slower the rate activation energy has no effect on the rate of reaction the smaller the activation energy, the slower the rate (b) temperature the higher the temperature, the faster the rate temperature has no effect on the rate of reaction the lower the temperature, the faster the rate (c) frequency of collisions the greater the frequency of collisions, the slower the rate the greater the frequency of collisions, the greater the rate the frequency of collision has no effect on the rate of reaction (d) orientation of collisions the amount of correct orientation of collisions has no effect on the rate of reaction the greater the number of correct orientation of collisions, the faster the rate the greater the number of correct orientation of collisions, the slower the rate 2. –/1 pointsNotes Question: ZumChemP6 15.E.070. Chemists commonly use a rule of thumb that an increase of 10 K in temperature doubles the rate of a reaction. What must the activation energy be for this statement to be true for a temperature increase from 50. °C to 60. °C? kJ/mol
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–/1 pointsNotes Question: ZumChemP6 15.E.076. The activation energy for the following reaction is 125 kJ/mol, and Δ E for the reaction is 216 kJ/mol. NO 2 ( g ) + CO( g ) NO( g ) + CO 2 ( g ) What is the activation energy for the reverse reaction [NO( g ) + CO 2 ( g ) NO 2 ( g ) + CO( g )]? kJ/mol 4. –/1 pointsNotes Question: ZumChemP6 15.E.082. One mechanism for the destruction of ozone in the upper atmosphere is as follows. O 3 ( g ) + NO( g ) NO 2 ( g ) + O 2 ( g ) Slow NO 2 ( g ) + O( g ) NO( g ) + O 2 ( g ) Fast Overall reaction: O 3 ( g ) + O( g ) 2 O 2 ( g ) (a) Which species is a catalyst? (b) Which species is an intermediate? (c) E a for the uncatalyzed reaction is 14.0 kJ. E a for the same reaction when catalyzed is 11.9 kJ. What is the ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction at 25°C? Assume that the frequency factor
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HW 3 - 1.1/1 pointsAll Submissions NotesQuestion: ZumChemP6...

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