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A monometer contains a liquid of density...

A monometer contains a liquid of density `5.44g//cm^(3)` is attached to a flask containing gas 'A' as follows
If gas A undergoes` 30%` trimerisation `[3A(g)ltimpliesA_(3)(g)]` then the difference in height of the liquid level in two columns is:

A

38 cm

B

7.6 cm

C

3.04 cm

D

15.1 cm

Text Solution

Verified by Experts

The correct Answer is:
b
(b) `3A(g)ltimpliesA_(3)(g)`
`{:(t=0,1.2atm,A_(3)(g)),(t=t_(eq.),1.2-0.36,(1)/(3)(0.36)=0.12atm):}`
`:. " "P_(T)`=1.2=0.36+0.12=0.96 atm
`:.` Pressure difference in column
=1 - 0.96=0.04 atm
`:.` The difference in height of the liquid level in two columns=`0.04xx190=7.6cm`
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