Evaporation and Drying

Page's thin-layer drying equation modifies Lewis' model by introducing an empirical exponent $N$. It is expressed as:

Options:

• (A) $MR = \frac{M - M_e}{M_0 - M_e} = \exp(-k t^N)$
• (B) $MR = \exp(-(k t)^N)$
• (C) $MR = 1 - k t^N$
• (D) $MR = a \exp(-k t) + c$