Estimating Oxygen Solubility MCQ

Test your knowledge with important Estimating Oxygen Solubility MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Estimating Oxygen Solubility MCQs at Bissoy

• Refer to Q14 and, Calculate the solubility of oxygen in units of grams of oxygen per liter of water.
  ক

  0.0080 g/L

  খ

  0.0082 g/L

  গ

  0.0083 g/L

  ঘ

  0.0085 g/L
• The atmospheric pressure is 1.0 atm and Henry’s law constant for O2 is 1.66 x 10−6 M/mm Hg at 25 °C. Assume air contains 21% oxygen. Calculate the partial pressure of oxygen. (21% of air is oxygen and the mole fraction of O2 is 0.21).
  ক

  180 mm Hg

  খ

  130 mm Hg

  গ

  120 mm Hg

  ঘ

  160 mm Hg
• Which type of homebrewer is best for 8 ppm of dissolved oxygen in solution?
  ক

  Siphon sprays

  খ

  Whipping

  গ

  Splashing and shaking

  ঘ

  Pure air through a stone with an aquarium pump
• Does yeast need oxygen in fermentation process?
  ক

  True

  খ

  False
• The value of Henry’s law constant increases with increasing temperature?
  ক

  True

  খ

  False
• The Henry’s law constant for O2 in water at 25°C is 1.27×10−3M/atm and the mole fraction of O2 in the atmosphere is 0.21. Calculate the solubility of O2 in water at 25°C at an atmospheric pressure of 1.00 atm. Strategy: ▪ Use Dalton’s law of partial pressures to calculate the partial pressure of oxygen. ▪ Use Henry’s law to calculate the solubility, expressed as the concentration of dissolved gas.
  ক

  2.5×10-4 M

  খ

  2.1×10-4 M

  গ

  2.3×10-4 M

  ঘ

  2.7×10-4M
• The dissolved oxygen decreases when?
  ক

  The temperature is increased

  খ

  The pressure is increased

  গ

  The salinity is decreased

  ঘ

  The salinity is increased
• Refer to Q6 and Q7, and calculate the air dissolved in water?
  ক

  0.0228 g/liter

  খ

  0.0223 g/liter

  গ

  0.0227 g/liter

  ঘ

  0.0222 g/liter
• Henry Law’s Constants at a system temperature of 25°C (77°F) of nitrogen is 1600 atm/(mol/litre). Molar weight of N2 is 28.0134 g/mol and partial fraction in air is ~ 0.79. Calculate the Nitrogen dissolved in the Water at atmospheric pressure.
  ক

  0.0138 g/liter

  খ

  0.0130 g/liter

  গ

  0.0132 g/liter

  ঘ

  0.0134 g/liter
• Henry Law’s Constants at a system temperature of 25°C (77°F) of oxygen is 756.7 atm/(mol/litre). Molar Weight of O2 is 31.9988 g/mol and partial fraction in air is ~ 0.21. Calculate the Oxygen dissolved in the Water at atmospheric pressure.
  ক

  0.0090 g/liter

  খ

  0.0089 g/liter

  গ

  0.0080 g/liter

  ঘ

  0.0099 g/liter
• “The amount of air dissolved in a fluid is proportional to the pressure in the system”, which law is applicable to this statement?
  ক

  Raoult’s law

  খ

  Fick’s law

  গ

  Henry’s law

  ঘ

  Newton’s law
• The solubility of oxygen in water is temperature and pressure dependent?
  ক

  True

  খ

  False
• The addition of ions and sugars added to the fermentation increases the oxygen solubility?
  ক

  True

  খ

  False
• What is the unit of oxygen solubility “C*AL”?
  ক

  mgl-1

  খ

  mg-1l-1

  গ

  m-1g-1l-1

  ঘ

  mgl
• The partial pressure of oxygen at 1atm is ________________
  ক

  0.2000 atm

  খ

  0.2098 atm

  গ

  0.2099 atm

  ঘ

  0.2096 atm