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Relate free energy with equillibrium con...

Relate free energy with equillibrium constant. For a reaction both `DeltaH` and `DeltaS` are positive.Under what conditions does the reaction occur spontaneously?

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To relate free energy with the equilibrium constant and determine the conditions under which a reaction occurs spontaneously when both ΔH (enthalpy change) and ΔS (entropy change) are positive, we can follow these steps: ### Step 1: Understand the Gibbs Free Energy Equation The Gibbs free energy change (ΔG) for a reaction is given by the equation: \[ \Delta G = \Delta H - T \Delta S \] where: - ΔG = change in Gibbs free energy - ΔH = change in enthalpy ...
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MODERN PUBLICATION-THERMODYNAMICS-Conceptual Questions - 3
  1. How does entropy change with (i) increase in temperature, (ii) decreas...

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  2. What is entropy ? Is the entropy of the universe constant?

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  3. What is the value of change in entropy at equilibrium?

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  4. Arrange water vapour, liquid water and ice in the order of increasing ...

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  5. Do you expect DeltaS to be +ve, -ve, or zero for the reaction H(2)(g...

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  6. Place the following systems in order of increasing randomness : (a)1...

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  7. Which of the following processes are accompanied by increase or entrop...

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  8. Predict the sign of entropy change for each of the following changes o...

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  9. Predict the entropy change (positive / negative) in the following: (...

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  10. If standard free energy change for a reaction is found to be zero, wha...

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  11. What is the value of DeltaG at melting point of ice?

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  12. Relate free energy with equillibrium constant. For a reaction both Del...

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  13. Comment on the following statements: (a) An exothermic reaction is a...

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  14. The standard molar entropy of H(2)O(l) is 70 J K^(-1) "mol"^(-1).Wil...

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  15. Which quantity out of Delta(r)G or Delta(r)G^(@) will be zero at equil...

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  16. Why is entropy of substance taken as zero at absolute zero of temperat...

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  17. Predict the signs ofDeltaH and DeltaS for the reaction : 2CI(g) to C...

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  18. An exothermic reaction X to Y is spontaneous in the backward direction...

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