Stoichiometry 'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the Log (temperature) vs. log (vapor pressure) Vapor pressure vs. log (temperature) Vapor pressure vs. temperature Temperature vs. log (vapor pressure) Log (temperature) vs. log (vapor pressure) Vapor pressure vs. log (temperature) Vapor pressure vs. temperature Temperature vs. log (vapor pressure) ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute. Increase None of these Decrease Remain unchanged Increase None of these Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C). °API = (141.5/G) - 131.5 °API = 200(G - 1) °API = (140/G) - 130 °API = 145 - (145/G) °API = (141.5/G) - 131.5 °API = 200(G - 1) °API = (140/G) - 130 °API = 145 - (145/G) ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a pure solvent Increases its boiling point Increases its freezing point Decreases its freezing point Both B and C Increases its boiling point Increases its freezing point Decreases its freezing point Both B and C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be Significantly more than 4.69 atm Indeterminate due to lack of data Nearly equal to 4.69 atm Significantly less than 4.69 atm Significantly more than 4.69 atm Indeterminate due to lack of data Nearly equal to 4.69 atm Significantly less than 4.69 atm ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The increase in the temperature of the aqueous solution will result in decrease of its Molarity Molality Weight % of the solute Mole fraction of the solute Molarity Molality Weight % of the solute Mole fraction of the solute ANSWER DOWNLOAD EXAMIANS APP
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