Answer to Question #8294 in Physical Chemistry for Claire Pyatt
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.
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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