Dec 4, 2008 ， In this paper, the properties of enthalpy and entropy data for the silica gel + water system at temperatures from (273 to 373) K and at different equilibrium ...
Feb 12, 2009 ， In this paper, the properties of enthalpy and entropy data for the silica gel + water system at temperatures from (273 to 373) K and at ...
This paper describes an experimental approach for the determination of thermodynamic characteristics of silica gel–water working pair that is essential for the ...
People also ask
What is the absorption of water by silica gel?
Silica gel does it by adsorption, which means that the water molecules adhere to the surface of the silica gel. The silica gel is a very porous component with a high number of voids that may contain water when needed.
How does silica gel absorb water?
Silica gel is a desiccant that can hold 30 to 40% of its weight in water. Water molecules stick to its surface, which is called adsorption. The similar-sounding phenomenon of absorption, involves the material being chemically incorporated into the material itself.
What is the heat of adsorption of silica gel water?
Adsorption can be enhanced by application of the pair with consolidated adsorbents e.g. zeolite and chlorides/water, porous substances and chlorides/ ammonia or silica gel and chlorides/water. In this work, the silica gel/water pair is considered. Heat of adsorption, in this case, is equal to 2800 kJ/kg [6].
What is the adsorption capacity of silica gel water?
In general, silica gel can adsorb up to 40% of its weight in water vapor before it becomes fully saturated – a state known as equilibrium. However, the time it takes for the silica gel to saturate depends on the specific conditions of its use.
... The basic behavior of silica gel for vapor absorption is physical adsorption, attributed to van der Waals forces and electrostatic forces between adsorbate ...
Adsorption thermodynamics of silica gel - water systems ; English ， 448-452 ， Journal of Chemical and Engineering Data ， 54 ， https://doi.org/10.1021/je800458k.
Feb 14, 2021 ， It is a chemically inert, highly porous, amorphous form of SiO2. Water vapor readily adsorbs onto the surface of silica gel, so it acts as a desiccant.
Adsorption thermodynamics of silica gel-water systems. Journal of Chemical and Engineering Data 54 (2) : 448-452. ScholarBank@NUS Repository. https://doi ...
Adsorption Thermodynamics of Silica Gel−Water Systems. https://doi.org/10.1021/je800458k. Journal: Journal of Chemical & Engineering Data, 2008, ∇ 2, ...
The new empirical model describes the water adsorption onto silica gel type A++ within a regression error of 3%.
In this paper, the properties of enthalpy and entropy data for the silica gel + water system at temperatures from (273 to 373) K and at different equilibrium ...