For a non-ideal solution with +-ve deviation

Options

A. `Delta H_(mix)=-ve`
B. `Delta V_(mix)=-ve`
C. `Delta S_(mix)=-ve`
D. `Delta G_(mix)=-ve`

Explanation

To solve the question regarding a non-ideal solution with positive and negative deviation, we need to understand the concepts of positive and negative deviations in solutions.

### Step-by-Step Solution:

1. **Understand Non-Ideal Solutions**:
- Non-ideal solutions do not obey Raoult's law. They exhibit deviations from ideal behavior due to interactions between different molecules in the solution.

2. **Identify Positive and Negative Deviations**:
- **Positive Deviation**: This occurs when the vapor pressure of the solution is higher than expected. This happens due to weaker interactions between different molecules compared to the interactions in the pure components. For example, a mixture of ethanol and hexane shows positive deviation.
- **Negative Deviation**: This occurs when the vapor pressure of the solution is lower than expected. This happens due to stronger interactions between different molecules than in the pure components. An example is a mixture of water and hydrochloric acid.

3. **Analyze the Components**:
- To determine if a solution shows positive or negative deviation, analyze the nature of the solute and solvent. If the solute-solvent interactions are weaker than solute-solute and solvent-solvent interactions, the solution will show positive deviation. Conversely, if the interactions are stronger, it will show negative deviation.

4. **Conclusion**:
- Based on the analysis of the interactions and the behavior of the solution, we can classify the solution as exhibiting either positive or negative deviation.