A sample of liquid H2O of mass 18.0 g is injected into an evacuated 7.6 L flask maintained at 27.0oC. lf vapoure pressure of H2O at 27oC is 24.63 mm Hg. What weight percentage of the water will be vapourised when the system comes to equilibrium? Assume water vapours behaves as an ideal gas. The volume occupied by the liquid water is negligible compared to the volume of the container:

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

1 %

10 %

18 %

20 %

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Initial wt. of H2O(l)=18gnH2O(g)=24.63760×7.60.0821×300⇒0.01 % wt. of H2O vaporised =0.01×1818×100⇒ 1%

Watch 3-min video & get full concept clarity