MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistrySolutionsRaoult’s law
The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.1 is equal to
A.23.9 mm Hg
B.24.2 Hg
C.21.42 mm Hg✓ Correct
D.21.44 mm Hg.
Explanation
2 0 23.8 H O P mm of Hg 2 2 2 2 0 0.1 1 0.1 0.9 23.8 0.9 21.42 sucrose H O H O H O H O X X P P X mmof Hg x