Raoult's law is obeyed by each constituent of a binary liquid solution when
- Athe forces of attractions between like molecules are greater than those between unlike molecules.
- Bthe forces of attractions between like molecules are smaller than those between unlike molecules.
- Cthe forces of attractions between like molecules are identical with those between unlike molecules.
- Dthe volume occupied by unlike molecules are different.
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Heptane and octane form an ideal solution. At $373 \, K$,the vapour pressures of the two liquid components are $105.2 \, kPa$ and $46.8 \, kPa$ respectively. What will be the vapour pressure of a mixture of $26.0 \, g$ of heptane and $35 \, g$ of octane (in $, kPa$)?
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