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Answer to Question #8294 in Physical Chemistry for Claire Pyatt

Question #8294
Reaction
2NO+2H2 --> N2+HO2

Experiment Initial NO Initial H2 Initial Rate
1 .420 .122 .136
2 .210 .122 .0339
3 .210 .244 .0678
4 .105 .488 .0339

1) Determine the order of each reactant and the total order of the reaction
2) Calculate the numerical value of the rate constant and specify the units
3) Write the rate law expression for the reaction above.
Expert's answer
Rate=k [NO]^2 [H2]^2
k for exp1=51.789
exp2=51.64

exp3=25.8
exp4=12.9
So on the reaction rate oly affects the
concentration of [H2]
1)Total order of the reaction is first,order of H2 is
firs too and order of NO is zero
2)k=-tgA ,The reaction rate constant is
calculated as the slope of the time axis
3)v=k[H2]

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