HSC Science (Computer Science) 12th Board ExamMaharashtra State Board
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Absolute Entropies of Solids, Liquids and Gases Can Be Determined by - HSC Science (Computer Science) 12th Board Exam - Chemistry

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Question

Absolute entropies of solids, liquids and gases can be determined by

  • Measuring heat capacity of substance at various temperatures
  • Subtracting standard entropy of reactants from products
  • Measuring vibrational motion of molecules
  • Using formula ΔS° = ST° - SO°

Solution

Measuring heat capacity of substance at various temperatures.

The value of ST can be determined by measuring heat capacity of the solid at various temperatures and using the expression

`DeltaS=S_T-S_0=S_T=int_0^T(Cp.dT)/T`

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APPEARS IN

 2015-2016 (March) (with solutions)
Question 4.3 | 1.00 mark
Solution Absolute Entropies of Solids, Liquids and Gases Can Be Determined by Concept: Chemical Thermodynamics and Energetic - Work, Heat, Energy, Extensive and Intensive Properties.
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