Which of the following statement/statements regarding the solution (ethanol and cyclohexane) showing positive deviation is/are correct?

Such solutions have zero .ΔmixH

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Such solutions have negative .ΔmixH

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Such solutions have positive .ΔmixH

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Both 2 and 3

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Solution

The correct option is C
Such solutions have positive .ΔmixH

On adding cyclohexane to ethanol, some of the hydrogen bonds between ethanol molecules are broken. Energy is required to break the attractive forces between ethanol molecules.Hence .

Δ_mixH is positive ,

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and cyclohexane mixture shows positive deviation from Raoult's law.

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Which of the following statement/statements regarding the solution (ethanol and cyclohexane) showing positive deviation is/are correct?

The correct option is C Such solutions have positive .ΔmixH On adding cyclohexane to ethanol, some of the hydrogen bonds between ethanol molecules are broken. Energy is required to break the attractive forces between ethanol molecules.Hence . ΔmixH is positive ,

The correct option is C
Such solutions have positive .ΔmixH

On adding cyclohexane to ethanol, some of the hydrogen bonds between ethanol molecules are broken. Energy is required to break the attractive forces between ethanol molecules.Hence .

Δ_mixH is positive ,