Essays on Gibbs Free Energy

Calculations for ΔG and KeqΔG=-NFECELL=-296.4850.45=-86836.5ΔG=-RTlnKEQ-86836.5=-8.3144293lnKEQlnKEQ=-86836.5-2436.1192lnKEQ=34.65e34.65=KEQKEQ=3.545 Based on the numerical value for Ecell (measured), the reaction is spontaneous. Being that the redox reaction has a positive value for Ecell, the reaction is spontaneous. It would cease to be spontaneous if the Ecell value is negative (Aus-e-tute, p.1). Based on the numerical value for delta G (calculated), the reaction is spontaneous. Delta G, or Gibbs free energy can have a positive, negative or null value. A reaction is non spontaneous when delta G is positive, and spontaneous when the value is negative. A reaction is said to be at ...

1.0 Introduction

Nano-thermal analysis is a primary technique used in the study of the characteristics of pharmaceutical materials in the initial phase of drug design and development. Some of the drug properties that can be studied using nano-thermal analysis include the spatial distribution of the constituents, shape, and size particularly in multicomponent drug sample. Using nano-thermal procedures the different components of these multicomponent drugs can be studied and characterized without having to dissociate the drug. The technique is particularly useful in increasing the dissolution of drugs with low water solubility hence improve their bioavailability. This is by facilitating the formation of solid ...