Question

which is correct about an ideal solution? (a) ∆H mix= -ve (b) ∆H mix= +ve (c) ∆H mix= 0 (d) non of these​

Answer 1

Answer:

for an ideal solution, delta H = 0

Answer 2

Explanation:

c is the answer.....

The enthalpy of mixing of two components should be zero, that is, Δmix H = 0. This signifies that no heat is released or absorbed during mixing of two pure components to form an ideal solution

The volume of the mixing is equal to zero that is, Δmix V = 0. This means that total volume of solution is exactly same as the sum of the volume of solute and solution. Adding further, it also signifies that there will be contraction or expansion of the volume while the mixing of two components is taking place.

for non ideal solutions,

The enthalpy of mixing that is, Δmix H ≠ 0, which means that heat might have released if enthalpy of mixing is negative (Δmix H < 0) or the heat might have observed if enthalpy of mixing is positive (Δmix H > 0)

The volume of mixing that is, Δmix V ≠ 0, which depicts that there will be some expansion or contraction in the dissolution of liquids

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