What properties of a equation? realgs are accounted fot by the \"s and the venn

Question

What properties of a equation? realgs are accounted fot by the "s and the venn the van der term of 17. The "a" term for Hois 52% larger than that co, however, the "b" term for Hp is 40%smaller than CO- Provide a molecular reason for these differences. Table 2.1 substances van der Waals Constants and Boiling Points of some b/L-mol Boiling point/K alatm L' mol-I Substance 27,2 0.0174 0.214 87.3 20.3 0.0386 135 00312 1.34 83.2 95.2 3.60 109.2 0.0430 313.15 0.0305 5,47 H20 0.0379 NH3 Copyright2000, Uilwenty Science Books

Explanation / Answer

16) Vander Waals equation of state:
   [P + a(n/V)2 ] [ V/n - b] = RT
   a - It represents the correction factor for the intermolecular forces
b - Correction factor for very small molecular size which is measured for volume
     of one mole of atom/molecule.
17) If 'a' term for H2O is 52% larger than CO2 then that means that the intermolecular forces of attraction
   are greater and stronger than that of CO2 .
   The reason for this is that H2O has hydrogen bonding, but in CO2 the 2 C-O bonds oppose and
      cancel each other.
'b' term for H2O is 40% smaller than CO2, this means that the molecular size of H2O is smaller
   than CO2. The bond angle in water is 109.5o whereas CO2 has bond angle of 180o , this shows
   as to why there is difference in the molecular size.
  

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