5.5.e - Enthalpy of Solution
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Practice Questions
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What is the enthalpy change when 1 mole of NaCl is dissolved in water?
💡 Hint: Remember the definitions of lattice energy and hydration energy.
Define hydration energy.
💡 Hint: Focus on the process of dissolution.
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Interactive Quizzes
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Lattice energy refers to the energy required to:
💡 Hint: Remember the role of lattice energy in dissolution.
True or False: The enthalpy of solution can only be negative.
💡 Hint: Reflect on examples of both exothermic and endothermic dissolutions.
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Challenge Problems
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Given that the enthalpy change (∆solH⁰) for dissolving potassium bromide in water is +37.2 kJ/mol, explain how this could still occur despite the endothermic nature, using hydration reasoning.
💡 Hint: Consider temperature and solvation interactions.
Discuss the implications of enthalpy of solution on environmental chemistry, specifically in aquatic systems.
💡 Hint: Think about seasonal changes and reactions in natural waterways.
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