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For each phase change, determine the sign of ΔH and ΔS. Drag the appropriate items to their respective bins. HelpReset sublimationfreezingcondensationdepositionboilingmelting

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scme1702
We know that the relationship between enthalpy and entropy is:
ΔS = ΔH/T
Therefore, both the change in enthalpy and the change in entropy will have the same sign. Now, considering each change:

Sublimation: Negative
Freezing: Positive
Condensation: Positive
Deposition: Positive
Boiling: Negative
Melting: Negative
kennedyquick2001

Answer:

Phase Changes with a Negative ΔS and ΔH:

  • Condensation
  • Freezing
  • Deposition

Phase Changes with a positive ΔS and ΔH:

  • Sublimation
  • Boiling
  • Melting

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