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Predict the entropy change (positive / n...

Predict the entropy change (positive / negative) in the following:
(i) `CaCO_(3)(s) to CaO(s) + O_(2)(g)`.
(ii) `N_(2)(g)(1 atm) to N_(2)(g) (0.5 atm)`.

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To predict the entropy change for the given reactions, we will analyze each case step by step. ### (i) Reaction: `CaCO3 (s) → CaO (s) + O2 (g)` 1. **Identify the states of matter**: - Calcium carbonate (CaCO3) is a solid. - Calcium oxide (CaO) is also a solid. - Oxygen (O2) is a gas. ...
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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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