consider-an-ideal-solution-at-25-c-that-is-made-up-of-35-0-g-of-pentane-c5h12-an

Question

Consider an ideal solution at 25°C that is made up of 35.0 g of pentane (C₅H₁₂) and 35.0 g of hexane (C₆H₁₄). The vapor pressure of pentane and hexane at 25°C are 514 torr and 153 torr, respectively. Why is the composition of the solution different from the composition of the vapor phase?

Accepted Answer

Pentane and hexane have different volatilities so the solution will have a different composition as the vapor phase.

Answer

Both are volatile compounds so the solution will have the same composition as the vapor phase.

Answer

Pentane and hexane have different intermolecular forces so the solution will have a different composition as the vapor phase.

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