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The rate constant for the second-order reaction 2NOBr(g) -> 2N0 (g) + Br2(g) is 0.80 M-1s-1 at 10 °C What is the half-life when the initial concentration of NOBr is 0.072 M? Starting with a concentration of 0.086 M, what is the concentration of NOBr after 22 s?

The rate constant for the second-order reaction 2NOBr(g) -> 2N0 (g) + Br2(g) is 0.80 M-1s-1 at 10 °C What is the half-life when the initial concentration of NOBr is 0.072 M? Starting with a concentration of 0.086 M, what is the concentration of NOBr after 22 s?

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 24E: For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is...
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The rate constant for the second-order reaction 2NOBr(g) -> 2N0 (g) + Br2(g) is 0.80 M-1s-1 at 10 °C What is the half-life when the initial concentration of NOBr is 0.072 M? Starting with a concentration of 0.086 M, what is the concentration of NOBr after 22 s?
Consider the voltaic cell with a standard cell potential of 2.89 V: Sr(s) Sr2+ (1.0 M)||H* (1.0 M)|H₂ (1 atm)|Pt(s) R= 8.314 J/mol-K; F = 96,485 J/mol-V 1. What is the Keq value for the reaction at 298 K? [Select] II. What is the AG° value for the reaction at 298 K? [Select]
Transcribed Image Text:Consider the voltaic cell with a standard cell potential of 2.89 V: Sr(s) Sr2+ (1.0 M)||H* (1.0 M)|H₂ (1 atm)|Pt(s) R= 8.314 J/mol-K; F = 96,485 J/mol-V 1. What is the Keq value for the reaction at 298 K? [Select] II. What is the AG° value for the reaction at 298 K? [Select]
The decomposition reaction of carbon disulfide, CS2, to carbon monosulfide, CS, and sulfur is first- order with a rate constant, k = 2.8 x 10-7 s1 at 1000 °C. CS₂ CS + S A. What is the half-life (in days) at 1000 °C? [Select] B. How many days would pass before a 2.00-g sample of CS₂ is reduced to only 0.75 g? [Select]
Transcribed Image Text:The decomposition reaction of carbon disulfide, CS2, to carbon monosulfide, CS, and sulfur is first- order with a rate constant, k = 2.8 x 10-7 s1 at 1000 °C. CS₂ CS + S A. What is the half-life (in days) at 1000 °C? [Select] B. How many days would pass before a 2.00-g sample of CS₂ is reduced to only 0.75 g? [Select]
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