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Predict whether the reaction, H - H (g) ...

Predict whether the reaction, `H - H (g) + Cl - Cl(g) to 2H - Cl (g)`, will be exothermic or endothermic. Give reason for your answer.

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ICSE-CHEMICAL THERMODYNAMICS -SHORT ANSWER TYPE QUESTIONS
  1. Define enthalpy. Show that the change in enthalpy at constant pressure...

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  2. Establish a relationship between DeltaH and DeltaU. Under what conditi...

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  3. Predict whether the reaction, H - H (g) + Cl - Cl(g) to 2H - Cl (g),...

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  4. State and explain the second law of thermodynamics.

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  5. State a chemical reaction in which DeltaH and DeltaU are equal.

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  6. What is meant by the term 'free energy'? What was the necessity of int...

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  7. Define enthalpy and enthalpy change. Show that DeltaH = qp.

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  8. What is the free energy criterion for a process to occur spontaneously...

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  9. Explain the term 'entropy'.

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  10. State giving reason whether the following reaction would involve an in...

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  11. What do you understand by a spontaneous process ? Give two examples

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  12. What do you understand by the spontaneity of a process ? Discuss the s...

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  13. Can DeltaH be regarded as the sole criterion to explain the spontaneit...

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  14. With the help of at least two examples show that randomness increases ...

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  15. What is entropy and in what units is it expressed ? Discuss the physic...

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  16. For the reaction 2H(g)rarr H(2)(g), the sign of DeltaH and DeltaS resp...

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  17. What happens to the entropy when a gas undergoes expansion ? Explain.

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  18. Is the entropy of the universe constant ?

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  19. State and explain the second law of thermodynamics. Mention the essent...

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  20. Show that the entropy changes in a reversible isothermal process is ze...

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