Stoichiometry The atomic heat capacities of all solid elements __________ with decrease in temperature. Remains unchanged Approach zero at 0°C Decreases Increases Remains unchanged Approach zero at 0°C Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The depression in freezing point of a solution is Both A & B Inversely proportional to the mass of solvent Neither A nor B Directly proportional to the mole of solute Both A & B Inversely proportional to the mass of solvent Neither A nor B Directly proportional to the mole of solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With rise in pressure, the solubility of gases in solvent, at a fixed temperature Increases Decreases Remains unchanged Decreases linearly Increases Decreases Remains unchanged Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ? ΔV = 0 ΔH = 1 (+ ve)and Δ V = -ve Both B and C ΔH = 0 ΔV = 0 ΔH = 1 (+ ve)and Δ V = -ve Both B and C ΔH = 0 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the Vapor pressure vs. temperature Log (temperature) vs. log (vapor pressure) Temperature vs. log (vapor pressure) Vapor pressure vs. log (temperature) Vapor pressure vs. temperature Log (temperature) vs. log (vapor pressure) Temperature vs. log (vapor pressure) Vapor pressure vs. log (temperature) 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 average molecular speed Decrease in mean free path Increased collision rate among molecules Increase in molecular attraction Increase in average molecular speed Decrease in mean free path Increased collision rate among molecules Increase in molecular attraction ANSWER DOWNLOAD EXAMIANS APP
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