Machine-translated by Google. Questions are authored in English.
Top

Discussion

Aggregation of ice crystals is most efficient at temperatures

  • A.above zero degrees where the crystals have already melted
  • B.close to zero where crystal surfaces become slightly sticky
  • C.below minus thirty where the crystals are hardest
  • D.at exactly minus forty degrees Celsius and nowhere else

Answer: B

A quasi liquid layer near the melting point helps colliding crystals adhere. Dendritic interlocking near minus fifteen provides a second and quite separate aggregation maximum. The two maxima arise from entirely different surface behaviour.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.