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MCQs

Total Questions : 2096 | Page 202 of 210 pages
Question 2011. Lenz's law results from the law of conservation of
  1.    Energy
  2.    Momentum
  3.    None of these
  4.    Mass
 Discuss Question
Answer: Option A. -> Energy
Question 2012. Fugacity and pressure are numerically equal, when the gas is
  1.    At high pressure
  2.    In standard state
  3.    At low temperature
  4.    In ideal state
 Discuss Question
Answer: Option D. -> In ideal state
Question 2013. What happens in a reversible adiabatic compression?
  1.    Heating occurs
  2.    Temperature is constant
  3.    Pressure is constant
  4.    Cooling occurs
 Discuss Question
Answer: Option A. -> Heating occurs
Question 2014. In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about __________ percent.
  1.    1
  2.    0.25
  3.    0.5
  4.    0.75
 Discuss Question
Answer: Option C. -> 0.5
Question 2015. The equation, PV = nRT, is best obeyed by gases at
  1.    High pressure & low temperature
  2.    Low pressure & low temperature
  3.    None of these
  4.    Low pressure & high temperature
 Discuss Question
Answer: Option D. -> Low pressure & high temperature
Question 2016. Which one is true for a throttling process?
  1.    The inversion temperature is same for all gases
  2.    The inversion temperature is different for different gases
  3.    A gas may have more than one inversion temperatures
  4.    The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity
 Discuss Question
Answer: Option B. -> The inversion temperature is different for different gases
Question 2017. With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure
  1.    Remains same
  2.    Decreases
  3.    Increases
  4.    Decreases linearly
 Discuss Question
Answer: Option C. -> Increases
Question 2018. Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole . °K
  1.    ∞
  2.    50
  3.    100
 Discuss Question
Answer: Option A. -> ∞
Question 2019. The temperature at which both liquid and gas phases are identical, is called the __________ point.
  1.    Critical
  2.    Triple
  3.    Freezing
  4.    Boiling
 Discuss Question
Answer: Option A. -> Critical
Question 2020. For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.
  1.    Increases
  2.    Decreases linearly
  3.    Decreases
  4.    Remains same
 Discuss Question
Answer: Option A. -> Increases

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