Question

Plz tell this question. Plz Give a genuine answer.
30ml of a mixture of oxygen and ozone was heated till ozone was completely decomposed. The mixture on cooling was found to expand 40ml. Find the volume of oxygen in original mixture.

Answer 1

Answer:

Your question is wrong bcoz there will be contraction bcoz delta gaseous products is less than zero

Explanation:

Let

Volume of ozone be x ml

And volume of oxygen be 30-x ml

And all ozone is converted to o2

And that is 1/2 volume of o3 is formed

And o3 requires some o2 for conversion

O3+1/2o2=2o2

And o2 reacted is twice o3 decomposed

Volume reacted = 2 volume o3 decomposed

Volume reacted = 2x

Volume unreacted = 30-3x

By volume cooling contraction law

-40=x/2+30-3x-30

-40=-5/2x

x=16ml

Volume of o2 = 4ml

Volume of o3 = 16ml