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Question
Which one of the following is incorrect for an ideal solution?
Options
∆Hmix = 0
∆Vmix = 0
∆P = `"P"_"observed" - "P"_"calculated by Raoults law" = 0`
∆Gmix = 0
Solution
∆Gmix = 0
Explanation:
∆G cannot be equal to zero because mixing does not lead to equilibrium.
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Vapour pressure of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot `"P"_"total"`, `"P"_"chloroform"` and `"P"_"acetone"` as a function of `"x"_"acetone"`. The experimental data observed for different compositions of mixtures is:
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| `bb("P"_"chloroform"//"mm Hg")` | 632.8 | 548.1 | 469.4 | 359.7 | 257.7 | 193.6 | 161.2 | 120.7 |
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