Which is the best example of decreasing entropy?
O A box of nails is left in the rain and the nails rust over time.
O A pile of dirt on a floor is cleaned up with a broom.
O Apuddle of water is exposed to the sun and evaporates.
O A tree in a forest grows naturally over 10 years.

Respuesta :

Answer:

B. A pile of dirt on the floor is cleaned up with a broom.

Explanation:

An increasing entropy is something that is left to be, like the other answers. decreasing entropy is disrupted usually by a person or something living.

When the pile of dirt on a floor is cleaned up with a broom, the molecular weight of the dirt present on the floor will decrease resulting in a decreased entropy.

Entropy is the measure of the degree of disorderliness of a system. It entails the randomness of a system.

  • Entropy of a system increases with increase in temperature and molecular weight of the compound.
  • Entropy can also increase when the pressure of the system is reduced.

A decrease in entropy would mean an increase in pressure, or a decrease in molecular weight or temperature.

Thus, considering the given options, only option B will result in a decreased molecular weight. When the pile of dirt on a floor is cleaned up with a broom, the molecular weight of the dirt present on the floor will decrease resulting in a decreased entropy.

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