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AP EAMCET202316 May 2023Morning ShiftChemistryThermodynamics (C)Actual

If the standard enthalpy of sublimation ( _ gos H ^ ) of solid CO ₂ , naphthalene, Li and Na are 25.2,73.0,162,108 kJ mol respectively, the order of sublimation of these substances with temperature is

Options

  1. ANa > Li > Naphthalene > Solid CO ₂
  2. BSolid CO ₂> Na > Naphthalene > Li
  3. CSolid CO ₂> Naphthalene > Na > Li
  4. DLi > Na > Naphthalene > Solid CO ₂

Correct answer

C. Solid CO ₂> Naphthalene > Na > Li

Step-by-step solution

The lower the sublimation enthalpy, the lower is the heat required to sublime it and easier for that substance to get sublimed. Thus, the order of ease of sublimation will be:solid CO ₂> Na > Na > Li

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