With the increase in charge to size ratio of ions, the lattice energy:
Correct answer: B. Increases
- A. Remains unaffected
- B. Increases
- C. Decreases
- D. All of these are possible
Explanation
A larger charge-to-size ratio means ions are more highly charged and more tightly packed, which increases the strength of ionic bonding in the crystal. Stronger ionic bonds require more energy to separate the ions; therefore, the lattice energy increases.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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