Ammonium Nitrate (NH₄NO₃)dissolves Readily in Water Even Though the Dissolution

question 71

Multiple Choice

Ammonium nitrate (NH₄NO₃) dissolves readily in water even though the dissolution is endothermic by 26.4 kJ/mol. The solution process is spontaneous because __________.

• A)the vapor pressure of the water decreases upon addition of the solute
• B)osmotic properties predict this behavior
• C)of the decrease in enthalpy upon addition of the solute
• D)of the increase in enthalpy upon dissolution of this strong electrolyte
• E)of the increase in disorder upon dissolution of this strong electrolyte

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