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An exothermic reaction associated with d...

An exothermic reaction associated with decrease in entropy takes place spontaneously at high temperature, but does not occur spontaneously at low temperature, explain.

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CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-SHORT TYPE QUESTIONS
  1. Given: C(graphite, s)+O(2)(g)toCO(2)(g),DeltaH^(0)=x(1) C(graphite, ...

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  2. At 25^(@)C,DeltaH(f)^(0)=0 for graphite, but for diamond DeltaH(f)^(0)...

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  3. Mention two applications of Hess's law.

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  4. "At 25^(@)C, the standard heat of combustion of graphite is -94300cal*...

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  5. "At 25^(@)C, the standard heat of formation of H(2)O(l) is -285.83kJ*m...

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  6. (1)/(2)A(2)(g)+(1)/(2)B(2)(g)toAB(g),DeltaH=-50kcal. If the bond energ...

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  7. C(s)+(1)/(2)O(2)(g)toCO(g),DeltaH=-110.4kJ. Does this DeltaH represent...

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  8. Give two examples of spontaneous process.

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  9. When an adiabatic process is said to be an isoentropic process ?

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  10. An exothermic reaction associated with decrease in entropy takes place...

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  11. What are the conditions of spontaneity and equilibrium for a process i...

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  12. Cl(g)+Cl(g) toCl(2)(g). What will be the sign of DeltaH and DeltaS in ...

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  13. Why is soild NaCl soluble in water although enthalpy of solution for N...

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  14. Why is the entropy of ice less than that of water?

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  15. Does the entropy of the system increase or decrease in the reaction: 2...

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  16. Why is (DeltaS("system")+DeltaS("surroundings")) zero is a reversible ...

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  17. Many spontaneous processes are accompanied by decrease in entropy-expl...

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  18. Why is the entropy of any pure and perfectly crystalline substance at ...

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  19. Why solidification of water does not occur spontaneously although it i...

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  20. Why is Gibbs free energy called 'free energy' ?

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