A binary liquid solution exhibits positive deviation from ideal behaviour. Which of the following facts hold good? a)△ H mix > 0 and △ H mix < 0 b)△ H mix < 0 and △ G mix < 0 c)△ H mix > 0 and △ G mix > 0 d)△ H mix < 0 and △ G mix > 0

Options

A. `Delta H_("mix") gt 0 and Delta G_("mix") lt 0`
B. `Delta H_("mix") lt 0 and Delta G_("mix") lt 0`
C. `Delta H_("mix") gt 0 and Delta G_("mix") gt 0`
D. `Delta H_("min") lt 0 and Delta G_("min") gt 0`

Answer

A

Explanation

Positive deviation from ideality i.e., `Delta H_("mix") gt 0, Delta G_("mix")` will be negative as the formation of liquid solution is spontaneous.