Which of the two (hexane or heptane) liquids is volatile in pressure /composition diagram.

Answer 1

Hexane is more volatile than heptane in a pressure/composition diagram. This is because hexane has a lower boiling point and vapor pressure than heptane. As the pressure increases and the composition shifts towards the liquid phase, hexane will vaporize before heptane, making it the more volatile liquid in this scenario.

Answer 2

Which of the two (hexane or heptane) liquids is volatile in pressure /temperature composition diagram.