Home
Class 12
CHEMISTRY
On a certain day the vapour pressure is ...

On a certain day the vapour pressure is 14 mm of Hg for water vapour in air at `20^@C` . The saturated vapour pressure is 17.5 mm. How many moles of water vapour per litre of air would be required to saturate air at this temperature ?

A

`9.41 xx 10^(-4) `

B

`9.14 xx 10^(-4)`

C

`1.914 xx 10^(-4) `

D

`4.19 xx 10^(-4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

The saturation vapour pressure of water at 100^(@)C is

At 30^(@)C , the actual amount of water vapour present in 1 m^(3) of air is 15 g, whereas 30 g of water vapour is required to saturate air at the same temperature. Find the relative humidity.

The vapour pressure of water is 17.54mm Hg at 293 K. Calculate vapour pressure of 0.5 molal solution of a solute in it.

When in air said to be saturated with water vapour ?

What does the amount of water vapour needed to saturate air depend on ?

The vapour pressure of water in at 20^(@)C is 12mm of Hg on a particular day the sturation vapour pressure of water at 20^(@)C is 17.5 mm of Hg Calculate relative humidity .