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प्रश्न
Which of the following units is useful in relating concentration of solution with its vapour pressure?
विकल्प
Mole fraction
Parts per million
Mass percentage
Molality
उत्तर
Mole fraction
Explanation:
Mole fraction is useful in’relating vapour pressure with concentration of solution. According to Raoult’s law, the partial vapour pressure of each component in the solution is directly proportional to its mole fraction.
A is one component.
`P_A oo x_A, x_A = (n_A)/(n_A + n_B)`
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