Surface Chemistry and Nanoparticles Quiz
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Questions and Answers

Which of the following is a phenomenon taking place on the surface of substances?

  • Sublimation
  • Polymerization
  • Oxidation
  • Crystallization (correct)

    • What is the enthalpy of adsorption?

  • The heat energy required to convert a solid into a gas at the surface
  • The energy released when a gas is absorbed into a liquid
  • The amount of heat energy liberated when one mole of gas is adsorbed on the unit surface area of adsorbent (correct)
  • The energy required to remove one mole of gas from the unit surface area of adsorbent

    • In the Van't Hoff equation, what does ΔH0 > 0 indicate?

  • Exothermic reaction
  • Equilibrium state
  • Endothermic reaction (correct)
  • No reaction

    • Which type of reaction makes adsorption thermodynamically favorable?

    <p>Exothermic reaction</p> Signup and view all the answers

    What does accumulation of species on higher concentration on the surface of a substance due to intermolecular force define?

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

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