E-PolyLearning

16. What is the molecular mass of an ideal gas with pressure 1 atm, and density 10 g/L at temperature 27°C?
a. 84.5 g
b. 135.1 g
c. 186.8 g
d. 246.3 g
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Answer: (d).246.3 g

17. What is the specific gravity of CO₂ at 27°C and pressure 1 atm with respect to air of with density 1 g/L?
a. 1.23
b. 1.55
c. 1.78
d. 1.96
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Answer: (c).1.78

18. What is the specific gravity of CO at 27°C and pressure 5 atm with respect to air (molecular wt. = 29 g) at 27°C and pressure 10 atm?
a. 0.48
b. 0.56
c. 0.64
d. 0.72
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Answer: (a).0.48

19. What is the compressibility factor for an ideal gas?
a. 1
b. 2
c. 3
d. Depends on the gas
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Answer: (a).1

20. Which of the following is not the unit of R?
a. Atm.liter/K.mole
b. Pa.m³/K
c. N.Kg.m³/K.mole
d. None of the mentioned
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Answer: (c).N.Kg.m³/K.mole

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