Project ForgeMass Transfer
Mass Transfer Operations
GATE 2013
Easy
A wet solid is dried over a long period of time by unsaturated air of nonzero constant relative humidity. The moisture content eventually attained by the solid is termed as the
- Aunbound moisture content
- Bbound moisture content
- Cfree moisture content
- equilibrium moisture content
Explanation
Given enough time, a solid drying in air of fixed, nonzero relative humidity approaches the moisture content that is in equilibrium with that humidity — the equilibrium moisture content — beyond which no further drying occurs under those conditions.
Source: GATE CH 2013 (2013)
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