Which of the following is not a colligative property:
A. Osmotic pressure
B. Depression of freezing point
C. Lowering of vapor pressure
D. None of these
Total energy at a point comprises of _____ energy:
A. Potential & kinetic
B. Pressure
C. Internal
D. All A., B. & C.
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
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 these
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
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
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
The value of gas constant ‘R’ is ______ kcal/kg.mole.°C:
A. 2.79
B. 1.987
C. 3.99
D. None of these
In a binary liquid system, the composition expressed as _____ is independent of the temperature & pressure:
A. Kg of solute/kg of solvent
B. Kg-mole of solute/kg-mole of solvent
C. Kg-mole of solute/1000 kg of solvent
D. All A., B. & C.
Unit of mass velocity is:
A. kg/m.hr
B. kg/m2.hr
C. kg/hr
D. kg/m2
