Air Conditioning and Liquid-Liquid Mass Transfer
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Questions and Answers

What process occurs in the evaporator coil of an air conditioning system?

  • Adsorption
  • Evaporation (correct)
  • Condensation
  • Absorption

    • What is the primary purpose of a catalytic converter in an automobile?

  • To reduce noise pollution
  • To increase fuel efficiency
  • To reduce air pollution (correct)
  • To improve engine performance

    • In the leaching process, what happens to the metal ions?

  • They diffuse from the liquid phase into the solid ore phase
  • They dissolve in the solvent and diffuse into the liquid phase (correct)
  • They precipitate out of the solution
  • They react with the acid to form a compound

    • What is an example of a gas-liquid interphase process?

    <p>Air conditioning</p> Signup and view all the answers

    What is the purpose of liquid-liquid extraction?

    <p>To transfer a solute from one liquid phase to another</p> Signup and view all the answers

    What is the outcome of the process in a catalytic converter?

    <p>Conversion of pollutants to less harmful substances</p> Signup and view all the answers

    What is the unit of measurement for the concentration of A in the given equation?

    <p>kg/mol/m3</p> Signup and view all the answers

    What does the negative sign in the diffusion equation indicate?

    <p>Mass transfer from high concentration to low concentration</p> Signup and view all the answers

    What is the physical meaning of the diffusion coefficient DAB?

    <p>The ease of diffusion of A in B</p> Signup and view all the answers

    What is the unit of measurement for the molar flux of component A in the z direction?

    <p>kg mol A/s.m2</p> Signup and view all the answers

    What is the term for the rate of transfer of a substance through an area per unit time or amount of substance flowing through an area per unit time?

    <p>Flux</p> Signup and view all the answers

    What is the reverse process of absorption in gas-liquid mass transfer?

    <p>Stripping or desorption</p> Signup and view all the answers

    What type of mass transfer involves the movement of a substance between two phases?

    <p>Interphase mass transfer</p> Signup and view all the answers

    What is the purpose of membrane separation in desalination?

    <p>To selectively allow certain components to pass through while blocking others</p> Signup and view all the answers

    Which of the following is an example of gas-liquid mass transfer?

    <p>Absorption of CO2 from flue gas by amine solvents</p> Signup and view all the answers

    What is the term for the transfer of a gaseous component into a liquid phase?

    <p>Gas-liquid absorption</p> Signup and view all the answers

    Which of the following is not an example of interphase mass transfer?

    <p>Doping of semi-conductors</p> Signup and view all the answers

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