At equilibrium the concentration of water in vapour phase (C* ) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is (A) 0.0 (B) 0.2 (C) 0.4 (D) 1.0

At equilibrium the concentration of water in vapour phase (C*
) in
kg/m3 of air space and the amount of water (m) adsorbed per kg of dry
silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room
of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry
silica gel is kept in the room. The fraction of initial water remaining in the
air space after a long time (during which the temperature is maintained
constant) is
(A) 0.0
(B) 0.2
(C) 0.4
(D) 1.0
by

1 Answer

Answer :

(C) 0.4
by

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