A. 1
B. 9
C. 4
D. 252
Related Mcqs:
- 1 BTU/lb.←°F is equivalent to ____________ kcal/kg.°C?
A. 1
B. 2.42
C. 1.987
D. 4.97 - 1 Kcal/kg. °C is equivalent to _______________ BTU/lb. °F ?
A. 1
B. 2.42
C. 4.97
D. None of these - Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the ‘corresponding states’. At equal reduced conditions i.e., at the corresponding state, the ____________ of different gases are nearly the same?
A. Compressibility
B. Molecular weight
C. Humidity
D. None of these - 1m3 is approximately equal to_________________?
A. 28 litres
B. 35 ft3
C. 4.5 litres
D. 4.5 ft3 - A very dilute solution is prepared by dissolving ‘x1’ mole of solute in ‘x2’ mole of a solvent. The mole fraction of solute is approximately equal to_________________?
A. x1/x2
B. x2/x1
C. 1 – (x1/x2)
D. 1/x2 - “The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?
A. Law of Petit and Dulong
B. Kopp’s rule
C. Nernst heat theorem
D. Trouton’s rule - The value of Trouton’s ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kistyakowsky equation is used for calculation of Trouton’s ratio of _____________ liquids?
A. Polar
B. Non-polar
C. Both A. & B.
D. Neither A. nor B. - 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 - The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?
A. 2.79
B. 1.987
C. 3.99
D. None of these - A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately ?
A. 17
B. 20
C. 25
D. 34
