A) \[{{\Delta }_{mix}}H=0,\,{{\Delta }_{mix}}V=0,\,{{P}_{Total}}=P_{A}^{{}^\circ }{{x}_{A}}+P_{B}^{{}^\circ }{{x}_{B}}\]
B) \[{{\Delta }_{mix}}H=+ve,\,{{\Delta }_{mix}}V=0,\,{{P}_{Total}}=P_{A}^{{}^\circ }{{x}_{A}}+P_{B}^{{}^\circ }{{x}_{B}}\]
C) \[{{\Delta }_{mix}}H=0,\,{{\Delta }_{mix}}V=+ve,\,{{P}_{Total}}=P_{A}^{{}^\circ }{{x}_{A}}+P_{B}^{{}^\circ }{{x}_{B}}\]
D) \[{{\Delta }_{mix}}H=0,\,{{\Delta }_{mix}}V=0,\,{{P}_{Total}}=P_{B}^{{}^\circ }{{x}_{B}}\]
Correct Answer: A
Solution :
For an ideal solution AH and A\/for mixing should be zero. \[{{P}_{Total}}={{P}_{A}}+{{P}_{B}}\]and A - A, B - B and A - B interactions are nearly same.
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