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NEETChemistryThermodynamics (C)

What is the internal energy change (∆U) for the dissociation of one mole of NaCl into its ions in the gaseous state?

Options

  1. A+496 kJ mol–1
  2. B–496 kJ mol–1
  3. C+411.2 kJ mol–1
  4. D–411.2 kJ mol–1

Correct answer

D. –411.2 kJ mol–1

Step-by-step solution

The internal energy change for the dissociation of one mole of NaCl into its ions in the gaseous state is –411.2 kJ mol–1.

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