2019 SolutionsIdeal and Non-ideal Solutions Easy Question 2 of 2 in Ideal and Non-ideal Solutions

For an ideal solution, the correct option is:

A $\Delta_{mix}S=0$ at constant $T$ and $P$
B $\Delta_{mix}V\neq0$ at constant $T$ and $P$
C $\Delta_{mix}H=0$ at constant $T$ and $P$
D $\Delta_{mix}G=0$ at constant $T$ and $P$

The answer is C.

Solution

For an ideal solution at constant T and P: $\Delta_{mix}H=0$, $\Delta_{mix}V=0$, $\Delta_{mix}S>0$, $\Delta_{mix}G<0$ So the correct option is $\Delta_{mix}H=0$.

Concept thermodynamic properties of an ideal solution

Ideal and Non-ideal Solutions in past papers

2 questions from this chapter have appeared across 2 exam years.