Stoichiometry Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is 0.2 0.5 0.58 1.72 0.2 0.5 0.58 1.72 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Refluxing of part of the distillate in a fractionating column is a 'recycling operation', aimed primarily at None of these Yield enhancement Heat conservation Product enrichment None of these Yield enhancement Heat conservation Product enrichment ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following expressions defines the Baume gravity scale for liquids heavier than water? 200(G-1) (141.5/G) - 131.5 145 - (145/G) (400/G) - 400 200(G-1) (141.5/G) - 131.5 145 - (145/G) (400/G) - 400 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat of adsorption of a gas caused by Van der Walls forces of attraction and capillarity is equal to the heat of Sum of A and B Wetting Difference of A and B Normal condensation Sum of A and B Wetting Difference of A and B Normal condensation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Increase in molecular attraction Increase in average molecular speed Increased collision rate among molecules Decrease in mean free path Increase in molecular attraction Increase in average molecular speed Increased collision rate among molecules Decrease in mean free path ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a solvent produces a __________ in its solvent. Vapor pressure lowering Boiling point depression All of these Freezing point elevation Vapor pressure lowering Boiling point depression All of these Freezing point elevation ANSWER DOWNLOAD EXAMIANS APP
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