Chemical Equilibrium

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1. what is a colligative property of solutions definitions?

  • All of the above
  • It is the properties of the solutions that depend on the number of particles in a given volumn of solvent but not in chemical properties of the solvent
  • They are observed in diluted solution so its possible to stop interactions with particles which depend on chemical structure.
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2. Dispersion systems. Which is Incorrect?

  • 2 types: Homogenous (eg emulsion, suspension foam) and heterogenous (eg. solution, mixtures of gases, alloys)
  • Systems in which the particles of a dispersed phase are dispersed in a dispersing medium
  • 2 types: Homogenous( eg solution, mixtures of gases, alloys) and heterogenous ( eg.emulsion, suspension foam )

3. If K=1 then

  • The conc of reactants and products are similar and reaction maybe typically reversible
  • The conc of reactants and products are similar and reaction maybe typically irreversible
  • products prevails reactants (if K is very high then it maybe irreversible
  • Reactants prevails products (if K is very low reaction may not occur)

4. The difference between the equlibrium constant and the reaction quotient?

  • Reaction quoitient uses actual concs (That maybe initial)
  • None of the above
  • Changes in formula
  • Reaction Quotient is used for equilibrium only

5. Equilibrium in live systems. Which is incorrect

  • It is an open system exchanging energy and matter with surroundings
  • None
  • In biological systems exists a steady (stationary) state, not a chemical equilibrium

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