Posted by **cara** on Sunday, February 6, 2011 at 6:11pm.

The following data are obtained for the decomposition of N2O5 at a certain temperature:

2N2O5(g)↔4NO2(g) + O2(g)

Time(s) 0 200 400 600 800

N2O5 (atm) 2.10 1.85 1.63 1.43 1.26

Find the rate constant kobs for this first-order decomposition reaction in sec-1

So far I have two equations that I think are needed: ln([At]/[Ao])=-kt and PV=nRT but how to proceed?

- College Chemistry -
**DrBob222**, Sunday, February 6, 2011 at 11:40pm
I believe you need to plot the data and determine the slope of the straight line. Plot ln A vs time.

- College Chemistry -
**cara**, Tuesday, February 8, 2011 at 9:58pm
But A stands for concentration..how would i obtain it from the data given?

- College Chemistry -
**jen**, Wednesday, February 9, 2011 at 11:23pm
Consider a .0500m solution.HClO2such that36% of the molecules dissociated when dissolved in water. Calculate the vant Hoff factor for this solution is hclo2 is36% associated

## Answer This Question

## Related Questions

- science - 2N2O5->4NO2+O2,d[N2O5]/dt=k1[N2O5],d[NO2]/dt=k2[N2O5]andd[O2]/dt=k3...
- Chemistry - The first-order rate constant for the decomposition of N2O5, 2N2O5(g...
- chemistry - For the decomposition of gaseous dinitrogen pentoxide (shownbelow), ...
- chemistry - For the decompostion of gaseous dinitrogen pentaoxide, 2N2O5(g)---&...
- chemsitry - hi I need help with this question please. 1. consider the ...
- Chemistry - Dinitrogen pentoxide, N2O5, decomposes by a first-order reaction. ...
- Chemistry - dinitrogen pentoxide n2o5 decomposes by a first-order decomposition ...
- Chemistry - dinitrogen pentoxide n2o5 decomposes by a first-order decomposition ...
- Chemistry - Dinitrogen pentoxide, N2O5, decomposes by first-order kinetics with ...
- Chemistry - Dinitrogen pentoxide, N2O5, decomposes by first-order kinetics with ...

More Related Questions