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
Stoichiometry
A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?
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) ?
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?
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?
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___________________?
Unit of mass velocity is___________________?
A. kg/m.hr
B. kg/m2.hr
C. kg/hr
D. kg/m2
Elements in a periodic table are arranged in order of their__________________?
Elements in a periodic table are arranged in order of their__________________?
A. Atomic number
B. Mass number
C. Atomic weight
D. Metallic characteristics
The most convenient way of expressing solution concentration is in terms of___________________?
The most convenient way of expressing solution concentration is in terms of___________________?
A. Mole fraction
B. Normality
C. Molality
D. Molarity
Disappearance of snow in subzero weather exemplifies the process of_________________?
Disappearance of snow in subzero weather exemplifies the process of_________________?
A. Evaporation
B. Sublimation
C. Vaporisation
D. Melting
The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?
The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?
A. 0.07
B. 0.09
C. 0.11
D. 0.13