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Which of the following solutions is an example of an ideal solution?

Option: 1

Ethanol and Acetone


Option: 2

Acetone and water


Option: 3

Sodium chloride and water


Option: 4

Carbon tetrachloride and chloroform


Answers (1)

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Carbon tetrachloride and chloroform is an example of an ideal solution because both components are nonpolar liquids and have similar molecular sizes and London dispersion forces. Thus, they have similar intermolecular interactions and can mix homogeneously without any significant change in volume or heat. Therefore, the enthalpy of mixing and activity coefficients of each component are close to unity, and the entropy of mixing is negative.

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