Effect of temperature on the sorption behavior of sulfate in some soils of West Bengal

Department of Chemistry, University of Kalyani, Kalyani-741 235, India

Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur,

Kalyani-741 252, India

Manuscript received 13 April /999, revised 10 November 1999, accepted 13 January 2000

Adsorption maximum of sulfate is higher in inceptisols followed by alfisols and entisols being higher at low temperature (293 K). Bonding energy constants are of very low values in all the soils. The results also show highest negative ΔG^o values in alfisols at 318 K and the lowest in entisols at 293 K. ΔHº and ΔSº changes are higher in alrlsols followed by entisols and inceptisol.