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NEETChemistryThermodynamics (C)

What is the enthalpy change for the ionization of sodium atoms (Na) to form sodium ions (Na+), given the equation: Na(g) → Na+(g) + e–; ∆ i H = 496 kJ mol–1?

Options

  1. A–496 kJ mol–1
  2. B+496 kJ mol–1
  3. C+108.4 kJ mol–1
  4. D–108.4 kJ mol–1

Correct answer

B. +496 kJ mol–1

Step-by-step solution

The enthalpy change for the ionization of sodium atoms to form sodium ions is +496 kJ mol–1, as indicated by the given equation.

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