Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

Equal masses of oxygen (O2) and ozone (O3) are taken seperately. choose the correct alternatives .(there are more than one correct)

(A)they contain equal number of oxygen atoms .

(B)they contain equal number of oxygen molecules.

(C) they occupy different volumes ( seperately)under the same conditions of temperature and pressure.

(D)under the same conditions of temperatures and pressure volume occupied by O2 and O3 are in 3:2 ratio . 

Asked by Yash Sahu | 15 Apr, 2014, 06:46: PM
answered-by-expert Expert Answer
Option (C) and (D).

1 mole of O2  = 32g

? moles of O2 = 1g

1 x 1/32 = 0.0312 moles = n1  ---------------------(1)

1 mole of O3  = 48g

? moles of O3 = 1g

1 x 1/48 = 0.0208 moles = n2  ---------------------(2)

So numbers of moles are different.

Solution for Option (C)

They occupy different volumes under the  same conditions of temperature and pressure.

PV = n RT  --------------------------------------------(3)

So V = n RT/P

When we calculate volume P, R and T will remain constant. But since number of moles are different so volumes of O2 and O3 will be different.

 

Solution for option (D)

Under the same conditions of temperature and pressure volume occupied by O2 and O3 are in the ratio 3:2.

Since P, R and T are constant.

So equation (3) can be written as follows

V1/V2 = n1/n2

V1/V2 = 0.0312/0.0208

Multiplying the equation by 100

V1/V2 = 3/2

So the ratio is 3:2

 

 

Answered by | 17 Apr, 2014, 04:28: PM
CBSE 11-science - Chemistry
Asked by thesouro007 | 20 Mar, 2024, 06:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by kamalpavenkp123 | 11 Mar, 2024, 02:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Trisha Gupta | 30 Oct, 2022, 05:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by visalvinod06 | 23 Jun, 2022, 07:39: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by bhagwatkrutika6 | 22 Jun, 2022, 09:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by shabnamaijaz83 | 19 Jun, 2022, 10:08: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by akankhyapradhan123 | 16 Jan, 2022, 07:46: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by abnarsale | 31 Dec, 2021, 10:41: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by naveenbahuguna05 | 11 Dec, 2021, 03:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by akhileshpandeypandey456 | 12 Aug, 2021, 11:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×