In the constant rate period of the rate of drying curve for batch dryi

1.	In the constant rate period of the rate of drying curve for batch drying,
A.	cracks develop on the surface of the solid.
B.	rate of drying decreases abruptly.
C.	surface evaporation of unbound moisture occurs.
D.	none of these.
Answer» D. none of these.

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In the constant rate period of the rate of drying curve for batch drying,

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