Enlist methods for particle size determination. Explain Coulter Counter.
[6 marks]Describe kinetic properties of colloids.
[5 marks]Explain the following terms:
[5 marks]Kraft point ii) Gold number iii) Thixotropy iv) Elastic modulus v)Rheology
[ marks]Kinematic Viscosity.
[ marks]Dielectric constant ii) Dilatant Flow iii) Sieve Number iv) True Density
[ marks]Discuss flocculation in suspension.
Write a note on Non Newtonian fluid with example.
[5 marks]Explain the following terms:
[5 marks]Enlist types of emulsions. Discuss stability of emulsions.
[5 marks]Describe accelerated stability study in detail.
[6 marks]Discuss in detail: Methods for Viscosity determination.
[5 marks]Elaborate derived properties of powders.
[5 marks]Discuss hydrolytic degradation of pharmaceuticals and its prevention.
[6 marks]Write a note on HLB Scale and its use in formulating emulsion.
[5 marks]Discuss Heckle equation.
[5 marks]Discuss methods for particle surface area determination.
[6 marks]Write a note: Size and shape of colloidal particles.
[5 marks]i) What is Plastic and elastic deformation? ii) What is yield point in stress-stain curve? Q. 6 (a) Give an overview of DLVO theory of colloidal dispersions.
[6 marks]Write a note on photolytic degradation and its prevention.
[5 marks]Elaborate Arrhenius plot and its importance in Pharmacy.
[5 marks]What is rate constant? Derive an equation for first order reaction.
[6 marks]Explain air permeability method.
[5 marks]