Chemical and Process Industries Unit Operations
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Questions and Answers

In which type of unit operations are momentum transfer, heat transfer, and mass transfer typically involved?

  • Only in adiabatic conditions
  • Only in gas absorption processes
  • Only in distillation processes
  • In chemical and process industries (correct)

    • What processes can take place when a fluid flows under adiabatic conditions through a bed of granular particles?

  • Only momentum transfer
  • Only mass transfer
  • Only heat transfer
  • Momentum transfer, heat transfer, and mass transfer (correct)

    • What can directly affect the convective component of heat transfer in the flow pattern of a fluid?

  • The size of the granular particles
  • Temperature difference between the fluid and the pipe wall or the particles (correct)
  • Pressure gradient in the direction of flow
  • Velocity gradient in the fluid stream

    • Which process frequently takes place in a packed column where the gas or vapor stream rises counter-currently to a liquid?

    <p>Fractional distillation only</p> Signup and view all the answers

    What is the function of packing in a packed column used for fractional distillation or gas absorption?

    <p>To provide a large interfacial area between the phases and to promote turbulence within the fluids</p> Signup and view all the answers

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