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If the dry spot appears in the substance in the batch drying curve at ___________

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+1 vote
in Mass Transfer by (37.1k points)
If the dry spot appears in the substance in the batch drying curve at ___________

(a) Critical moisture content

(b) Equilibrium moisture content

(c) Bound moisture

(d) Unbound moisture

I had been asked this question at a job interview.

The above asked question is from Drying-Rate of  Batch Drying topic in chapter Drying of Mass Transfer

1 Answer

0 votes
by (39.8k points)
Right option is (a) Critical moisture content

Easiest explanation: After the constant drying period, the moisture of unbound will finish then the dry spots appears. The constant drying period ends at critical moisture content.

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