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Is the system’s entropy change positive or negative ?

Is the system’s entropy change positive or negative ?. Water vapor deposits as ice crystals on a cold windowpane. A can of carbonated beverage loses its fizz (Consider the beverage but not the can as the system.). A glassblower heats glass to its softening temperature. Water boils.

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Is the system’s entropy change positive or negative ?

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  1. Is the system’s entropy change positive or negative?

  2. Water vapor deposits as ice crystals on a cold windowpane

  3. A can of carbonated beverage loses its fizz (Consider the beverage but not the can as the system.)

  4. A glassblower heats glass to its softening temperature

  5. Water boils

  6. A teaspoon of sugar dissolves in a cup of coffee. (The system consists of both sugar and coffee.)

  7. Calcium carbonate precipitates out of water in a cave to form stalactites and stalagmites. (Consider only the calcium carbonate to be the system.)

  8. Which one has a higher entropy?1 or 2 Be able to explain why

  9. Solid carbon dioxide at -78C • Carbon dioxide vapor at 0C

  10. Solid sugar • Sugar dissolved in tea

  11. 100mL of water and 100mL of alcohol • 100mL of water and 100mL of alcohol mixed together

  12. Cl2 (g) • P4 (g)

  13. NH4NO3(s) • NH4NO3(aq)

  14. AsH3(g) • Kr(g)

  15. CH3OH(l) • C2H5OH(l)

  16. Predict whether the entropy change would be positive or negative Be able to explain why

  17. C2H4(g) + H2(g)  C2H6(g)

  18. CH3OH(l)  CO(g) + 2H2(g)

  19. Ag+(aq) + I-(aq)  AgI(s)

  20. Br2(l) + H2(g)  2HBr(g)

  21. CaCO3(s)  CaO(s) + CO2(g)

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