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MCQs

Total Questions : 2096 | Page 10 of 210 pages
Question 91. PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.
  1.    Isothermal
  2.    Isentropic
  3.    Isobaric
  4.    Adiabatic
 Discuss Question
Answer: Option D. -> Adiabatic
Question 92. In the reaction, represented by, 2SO₂ + O₂ ⇋ 2SO₃; ΔH = - 42 kcal; the forward reaction will be favoured by
  1.    Low temperature
  2.    High pressure
  3.    Both A and B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A and B
Question 93. Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.
  1.    Polar
  2.    Non-polar
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option B. -> Non-polar
Question 94. The heat capacities for the ideal gas state depend upon the
  1.    Pressure
  2.    Temperature
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option B. -> Temperature
Question 95. An ideal liquid refrigerant should
  1.    Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils
  2.    Not have unduly high vapour pressure at the condenser temperature
  3.    Both A and B
  4.    Have low specific heat
 Discuss Question
Answer: Option C. -> Both A and B
Question 96. One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is
  1.    30554
  2.    10373
  3.    4988.4
  4.    4364.9
 Discuss Question
Answer: Option B. -> 10373
Question 97. Dry ice is
  1.    Moisture free ice
  2.    Solid helium
  3.    Solid carbon dioxide
  4.    None of these
 Discuss Question
Answer: Option C. -> Solid carbon dioxide
Question 98. Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates
  1.    Use of only one graph for all gases
  2.    Covering of wide range
  3.    Easier plotting
  4.    More accurate plotting
 Discuss Question
Answer: Option A. -> Use of only one graph for all gases
Question 99. Which of the following is a thermodynamic property of a system?
  1.    Concentration
  2.    Mass
  3.    Temperature
  4.    Entropy
 Discuss Question
Answer: Option D. -> Entropy
Question 100. Entropy of a substance remains constant during a/an __________ change.
  1.    Reversible isothermal
  2.    Irreversible isothermal
  3.    Reversible adiabatic
  4.    None of these
 Discuss Question
Answer: Option C. -> Reversible adiabatic

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