Critical humidity of a solid salt means the humidity

Related MCQs

• Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.
• It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).
• The percentage humidity is less than the relative humidity only at __________ percent humidity.
• A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls /ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))
• Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
• At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.
• The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the
• When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.
• For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.
• The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid).