Classify each process by its individual effect on the entropy of the universe, S.

Classify each process by its individual effect on the entropy of the universe, S.

Drag the appropriate items to their respective bins: Increases S of the Universe, Does not Affect S of the Universe, Decreases S of the Universe.

  • a process run infinitesimally slowly at equilibrium and reversed to its original state
  • a constant composition mixture of solid and liquid water at STP (273.15 K and 1 atm)
  • motion of a frictionless pendulum
  • a bag of red marbles and a bag of green marbles dumped together on a table top
  • ice melting to water above the melting point
  • sublimation of naphthalene (mothballs)

Answer:

Does not Affect S of the Universe

a process run infinitesimally slowly at equilibrium and reversed to its original state

a constant composition mixture of solid and liquid water at STP (273.15 K and 1 atm)

motion of a frictionless pendulum

Increases S of the Universe

a bag of red marbles and a bag of green marbles dumped together on a tabletop

ice melting to water above the melting point

sublimation of naphthalene

Explanation:

Entropy means disorder. if the randomness of the molecules increases then entropy increases.

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