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What happens to the enthalpy of mixing and the volume of mixing in ideal solutions?

Options

  1. AEnthalpy of mixing is high, and volume of mixing is low.
  2. BEnthalpy of mixing is zero, and volume of mixing is zero.
  3. CEnthalpy of mixing is low, and volume of mixing is high.
  4. DEnthalpy of mixing is negative, and volume of mixing is positive.

Correct answer

B. Enthalpy of mixing is zero, and volume of mixing is zero.

Step-by-step solution

In ideal solutions, the enthalpy of mixing (Δ mix H) and the volume of mixing (Δ mix V) are both zero.

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