Unit of mass velocity is___________________?
Unit of mass velocity is___________________?
A. kg/m.hr
B. kg/m2.hr
C. kg/hr
D. kg/m2
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According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?
According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?A. T
B. T0.5
C. T1.5
D. T2On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?
On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?A. 1
B. 8
C. 4
D. 2At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________?
At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________?A. 6
B. 8
C. 10
D. 12The crystallisation of a solute from a solution may be done by________________?
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.1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?A. 5
B. 10
C. 15
D. 20Except for monatomic gases, the molal heat capacity at constant volume for all gases is _____________ Kcal/Kg mole.° K?
Except for monatomic gases, the molal heat capacity at constant volume for all gases is _____________ Kcal/Kg mole.° K?A. 3
B. > 3
C. < 3
D. < 1