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What is the ideal dilute solution?


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Solution

Ideal dilute solution

  1. An ideal dilute solution is a true solution that obeys Henry's law and Raoult's law.
  2. The interactions A-AandB-Bhave almost the same interactions due to which Ideal solutions are formed. In pure ideal solutions, the interactions will be of the A-AandB-Btype and these interactions are due to the ideal behavior of solutions.
  3. Examples of ideal gas solutions are benzene and toluene, n-hexane and n-heptane, bromoethane and chloroethane, etc

Characteristics of Ideal gas -

  1. Henry's law states that the solubility of gas is directly proportional to the partial pressure of the gas. C=kPgaswhereC=solubilityofgask=HenryconstantPgas=Pressureofgas
  2. Raoult's law states that the vapor pressure of solution will be equal to the product of mole fraction of solvent and partial pressure of the individual solvents. Psolution=Xsolvent.Psolvent°wherePsolution=VaporpressureofsolutionXsolvent=MolefractionofsolventPsolvent°=Partialpressureofsolvent
  3. The enthalpy of mixing and the volume of mixing for the ideal gas solution are zero. Hmix=0Vmix=0
  4. This means that no heat is absorbed or released.

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