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What happens to the entropy when a gas u...

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

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Entropy increase because radomness increase on expansion.
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ICSE-CHEMICAL THERMODYNAMICS -SHORT ANSWER TYPE QUESTIONS
  1. What is entropy and in what units is it expressed ? Discuss the physic...

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

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

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  4. Is the entropy of the universe constant ?

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

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

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  7. Show that the entropy change in an irreversible process is always posi...

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  8. Define 'entropy of fusion' and 'entropy of vapourisation and write exp...

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  9. State and explain the second law of thermodynamics.

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  10. Gibbs Free Energy

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  11. Derive the equation, DeltaG = DeltaH - T DeltaS.

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  12. Give 2 points of difference between molarity and molality.

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

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  14. For the process A+ B to C + D, DeltaG is positive. Comment on the spon...

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  15. What are spontaneous processes ? Mention the conditions for a reaction...

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  16. What is entropy ? State the effect of increased temperature on the ent...

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  17. State the thermodynamic conditions for spontaneous occurrence of a pro...

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  18. DeltaH and DeltaS are positive for a chemical reaction. Under what con...

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  19. What is meant by free energy of a substance ? How is it related to its...

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  20. Define and explain the term entropy of a system. Illustrate it using a...

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