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State Raoult's law for a solution containing volatile components. What is the similarity between Raoult's law and Henry's law? |
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Answer» Solution :For a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its MOLE FRACTION present in the solution. According to Raoult.s law , vapour pressure of a volatile component is given by `p_1-x_1p_1^u` According to Henry.s law `p=K_Hx` If we COMPARE the TWO equations, we find that partial pressure of the volatile component or gas is directly proportional to its mole fraction in solution. Only the proportionality constant `K_H` differs from `p_1^0`. Thus there is a SIMILARITY between the two laws. |
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