Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) A) Sv B) 1/St C) St D) 1/Sv
A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is A) 0.16 B) 0.33 C) 0.66 D) 0.47
Number of gm moles of solute dissolved in one liter of a solution is called its A) Equivalent weight B) Molarity C) Molality D) Normality
In a neutral solution A) H+ ions are absent B) OH- ions are absent C) Both H+ and OH- ions are present in very small but equal concentration D) None Of Above
Hess’s law of constant heat summation is based on conservation of mass. It deals with A) Equilibrium constant B) Reaction rate C) Changes in heat of reaction D) None Of Above
The temperature of a gas in a closed container is 27° C. If the temperature of the gas is increased to 300° C, then the pressure exerted is A) Doubled B) Halved C) Trebled D) Unpredictable
Total energy at a point comprises of ——– energy A) Potential & kinetic B) Pressure C) Internal D) All of the above
Which of the following is not a colligative property A) Osmotic pressure B) Depression of freezing point C) Lowering of vapor pressure D) Concentration