Question

15.28 Consider the following reaction: 2 N2O(g) ? 2 N2(g)+O2(g) A In the first 13.0  s of...

15.28

Consider the following reaction:
2 N2O(g) ? 2 N2(g)+O2(g)

A

In the first 13.0  s of the reaction, 1.6×10?2  mol of O2 is produced in a reaction vessel with a volume of 0.400  L . What is the average rate of the reaction over this time interval?

Express your answer using two significant figures.

B.

Predict the rate of change in the concentration of N2O over this time interval. In other words, what is ?[N2O]?t?

Express your answer using two significant figures.

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Homework Answers

Answer #1

According to rate law,

for a reaction,

aA+bB --->cC+dD

rate of rxn-1/a[A]/t-1/b[B]/t1/c[C]/t1/d[D]/t

Average Rate of a reactionChange in concentration of product or reactant/change of time-1/2[N2O]/t1/2[N2]/t[O2]/t

given :t13.0s

[O2](final concentration of O2 in time t) -(initial concentration in t0)((1.6*10^-2mol)/0.4L)-00.04 mol/L

So,Average Rate of a reaction[O2]/t(0.04 mol/L)/13.0s0.0031 M/s

b)Average Rate of a reaction[O2]/t0.0031 M/s-1/2[N2O]/t

So,[N2O]/t2*0.0031 M/s0.0061 M/s

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