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Manipal MET2014ChemistryStructure of Atom

At 298 K the entropy of rhombic sulphur is 32.04 ~J / mol K and that of monoclinic sulphur is 32.68 ~J / mol K . The heat of their combustion are respectively- 298246 and -297948 ~J ~mol ⁻¹ . G for the reaction; S_ rhombic S_ monoclinic will be

Options

  1. A107.28 J
  2. B10.728 J
  3. C107.28 kJ
  4. D10728 J

Correct answer

A. 107.28 J

Step-by-step solution

aligned & S_ thombic S_ monoclinic & H=-297948-(-298246)=298 ~J & S=32.68-32.04=0.64 & G= H-T S=298-298 0.64=107.28 ~J aligned

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