Discussion
Shrinkage during drying occurs chiefly in the
Answer: B
Correct answer: constant rate period
Shrinkage happens while the water being removed is the water separating the particles: as it goes, the particles pull together and the body contracts. That is the constant rate period. Once the particles are in contact the shrinkage stops even though a good deal of water remains, and the falling rate period that follows empties pores without further contraction.
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