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MHT CET202314 May 2023Morning ShiftChemistryThermodynamics (C)Actual

If enthalpy change for following reaction at 300 ~K is +7 ~kJ ~mol ⁻¹ find the entropy change of surrounding? H ₂ O _ ( s ) H ₂ O _ (l)

Options

  1. A-42.8 ~J ~K ⁻¹
  2. B-23.3 ~J ~K ⁻¹
  3. C-30.7 ~J ~K ⁻¹
  4. D-110.0 ~J ~K ⁻¹

Correct answer

B. -23.3 ~J ~K ⁻¹

Step-by-step solution

aligned S _ surr & =- H ^ T =- (+7 ~kJ ) 300 ~K & =-0.00233 ~kJ ~K ⁻¹ & =-23.3 ~J ~K ⁻¹ aligned

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