AP Chemistry
6.1 Endothermic and Exothermic Processes
A student adds a sample of solid ammonium nitrate, \(\text{NH}_4\text{NO}_3\text{(s)}\), to a beaker of water at \(25^\circ\text{C}\). The dissolution process is represented by the equation below:
\[\text{NH}_4\text{NO}_3\text{(s)} \rightarrow \text{NH}_4^+\text{(aq)} + \text{NO}_3^-\text{(aq)} \quad \Delta H^\circ > 0\]
Which of the following best predicts the temperature change of the solution as the salt dissolves, and provides the correct justification?
\[\text{NH}_4\text{NO}_3\text{(s)} \rightarrow \text{NH}_4^+\text{(aq)} + \text{NO}_3^-\text{(aq)} \quad \Delta H^\circ > 0\]
Which of the following best predicts the temperature change of the solution as the salt dissolves, and provides the correct justification?
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