Industrial Chemistry

Describe the Frasch Process correct answers What process is this...Superheated water, compressed air forces sulphur emulsion to the surface Describe the Contact Process correct answers What process is this....S + oxygen sulphur dioxide sulphur dioxide + oxygen sulphur trioxide Sulphur trioxide + water sulphuric acid Explain some environmental issues of the contact process correct answers Sulphur dioxide into atmosphere acid rain so sulphur trioxide removed so more sulphur dioxide converted to sulphur trioxide 99.7 % is acceptable Outline several uses of sulphuric acid correct answers Fertilisers such as superphosphate and sulfate of ammonia; paints; detergents; pickling steel; petroleum refining; car batteries; plastics; What is a surfactant. correct answers A salt of a carboxylic anion with a long hydrophobic tail and a hydrophilic end that reduces surface tension and alters the properties of a surface How is sulphuric acid used in pickling steel correct answers removes iron oxide corrosion Sulphuric Acid correct answers What chemical is used in cellulose treatment for rayon fibres and as a dehydrator in the production of esters Sulphur properties correct answers Low melting point, insoluble in water, low density, inert, non toxic and non volatile Discuss some environmental issues with the Frasch process correct answers water-thermal pollution Dissolved minerals caverns after extraction sulphur needs to be cooled quickly otherwise toxic sulphur dioxide made How does volume effect equilibrium correct answers increase volume decrease pressure shift to the side with the most gaseous molecules How does an increase in temperature effect equilibrium correct answers exothermic reactions shift to the left endothermic reactions shift to the right How does concentration effect equilibrium correct answers increase reactants shift to the products removal of products drives to completion aA + bB cC + dD What is the equilibrium constant for this reaction correct answers K = [C]^c [D]^d/[A]^a [B]^b What does the Reaction Quotient, Q, indicate about equilibrium correct answers If Q K equilibrium shifts to the right If Q K the equilibrium shifts to the left What are some safety issues with production of sulphuric acid correct answers vapour are toxic- need clean air or mouth to mouth serious damage to skin storage in small bottles, cool, secure plastic containers Give at least three uses of Sodium Hydroxide correct answers bleaches and disinfectant soap from oils and fats conversion of bauxite to alumina