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MHT CET202012 Oct 2020Morning ShiftChemistryThermodynamics (C)Actual

Enthalpy of fusion and enthalpy of vaporization for water respectively are 6 01 ~kJ ~mol ⁻¹ and 45 07 ~kJ ~mol ⁻¹ at 0^ C what is enthalpy of sublimation at 0^ C ?

Options

  1. A27 50 ~kJ ~mol ⁻¹
  2. B48 07 ~kJ ~mol ⁻¹
  3. C51 08 ~kJ ~mol ⁻¹
  4. D39 06 ~kJ ~mol ⁻¹

Correct answer

C. 51 08 ~kJ ~mol ⁻¹

Step-by-step solution

_ fus H =6.01 ~kJ ~mol ⁻¹ _ vep H =45.07 ~kJ ~mol ⁻¹, _ eub H =? For sublimation at 0^ C , H ₂ O _ (t) H₁ H ₂ O _ ( ) H ₂ H ₂ O _ ( ) _ sub H=6.01+45.07=51.08 ~kJ ~mol ⁻¹

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