A. 0°C
B. 0°K
C. 0°F
D. 0°R
Related Mcqs:
- Concentration of a solution expressed in terms of _______________ is independent of temperature?
A. Molarity
B. Normality
C. Molality
D. None of these - In physical adsorption, as compared to chemisorption, the________________________?
A. Quantity adsorbed per unit mass is higher
B. Rate of adsorption is controlled by the resistance to surface reaction
C. Activation energy is very high
D. Heat of adsorption is very large - Maximum alumina content in high alumina refractory can be as high as ____________ percent?
A. 30
B. 50
C. 70
D. 90 - One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?
A. Brix = (400/G) – 400
B. Brix = 200 (G-1)
C. Brix = 145 – (145/G)
D. None of these - The crystallisation of a solute from a solution may be done by________________?
A. Removal of pure solvent by evaporation
B. Change of temperature thereby causing super-saturation
C. Changing the nature of the system by the addition of a more soluble material
D. All A., B. & C. - Pick out the wrong unit conversion of calorific value?
A. 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
B. 1 BTU/ft3 = 8.9 kcal/m3 = 0.038 MJ/m3
C. 1 BTU/lb = 2.3 kcal/kg
D. 1 kcal/m3 = 0.1124 BTU/ft3 - Which of the following is not a unit of pressure ?
A. Torr
B. Newton/m2
C. Parsec
D. Ata, bar or Pascal - An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?
A. 0.2500
B. 0.2528
C. 0.5000
D. 0.5055 - Addition of a non-volatile solute to a solvent produces a ______________ in its solvent?
A. Freezing point elevation
B. Boiling point depression
C. Vapor pressure lowering
D. All A., B. & C. - The heat capacity of most substances is greater for the _______________ state?
A. Solid
B. Liquid
C. Gaseous
D. None of these