JEE Main 2010 Chemistry question
If of water is introduced into a flask to 300 K, how many moles of water are in the vapour phase when equilibrium is established? (Given : Vapour pressure of at 300 K is 3170 Pa; )
Answer: (4)
Solution
At equilibrium the vapour is at 3170 Pa in about m³: \frac{PV}{RT}\frac{3170×10^{-3}}{8.314×300}$
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