The calculation of the entropy (S) for gases is essential for design process equipments which involve the calculation of the heat and work requirements for industrial processes.Prediction of accurate values of residual entropy (SR) is necessary step for the calculation of the entropy.
This research deals with experimental study of the rheological behavior of polymer solutions, solid suspension and the effect of adding polymers to solid suspensions. All polymers studied in this work are water soluble and used in industries as a rheology control additive (rheology modifiers), these are: CMC-Carboxymethyl cellulose, XCXanthan Gum, HEC-Hydroxyethyl cellulose and PVA-polyvinyl alcohol.
The prediction of latent heat of vaporization of pure compounds has at least sixteen methods to predict the latent heat of vaporization for pure compounds and three methods to predict the latent heat of vaporization for binary mixtures .All these methods has been evaluated in this work.There are at least nine methods available in literature for prediction of latent heat of vaporization at any temperature using either vapor pressure data or the law of corresponding states .These methods predict the latent heat of vaporization at various temperatures directly.
