A. Freezing point elevation
B. Boiling point depression
C. Vapor pressure lowering
D. All A., B. & C.
CHEMICAL ENGINEERING
With increase in the temperature of pure (distilled) water, its____________________?
A. pOH decreases and pH increases
B. pOH and pH both decreases
C. pH and pOH both increases
D. pH decreases and pOH increases
Boiling point of a solution as compared to that of the corresponding solvent is _________________?
A. Less
B. More
C. Same
D. Either more or less; depends upon the solvent
Number of gm moles of solute dissolved in 1 kg of solvent is called its___________________?
A. Normality
B. Molarity
C. Molality
D. Formality
1 Pascal (unit of pressure) is equal to _______________ N/m2 ?
A. 10
B. 1
C. 0.1
D. 1000
Pick out the wrong unit conversion of mass transfer co-efficient?
A. 1 lb/hr.ft3.atm. = 4.8182 kg/hr.m2.bar
B. 1 kg/hr.m2.atm= 0.98687 kg/hr. m .bar
C. 1 lb/hr.ft2 = 4.8823 kg/hr.m2
D. 1 kg/hr.m2 = 4.8823 lb/hr.ft2
Heat of solution in a system in which both solute and solvent are liquids is termed as_________________?
A. Heat of solvation
B. Heat of hydration
C. Standard integral heat of solution
D. Heat of mixing
The vapor pressure of liquids of similar chemical nature at any particular temperature _______________ with increase in the molecular weight?
A. Increases
B. Decreases
C. Remains unchanged
D. Either A. or B.; depends on the liquid