Solvent extraction is an exothermic reaction. Explain
Answers
Answer:
Calculated thermodynamic parameters show that the extraction process is endothermic reaction for V(V) and exothermic for Cr(III). Also, calculated values of ΔGex and ΔSex indicate that the extraction reactions of V(V) and Cr(III) proceed as non-spontaneous reaction is more random. V(V) and Cr(III) were stripped, precipitated, separated and calcined at 500 °C for 2.0 h to produce the corresponding oxide in pure form after rinsing and drying.
Answer:
A similar observation will be made if a low boiling solvent is used for extraction. The shaking of the mixture increases the surface area, and therefore the apparent vapor pressure of the solvent. In addition, many extraction processes are exothermic because they involve an acid-base reaction.