Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Nature of solute Temperature Pressure Nature of solvent Nature of solute Temperature Pressure Nature of solvent ANSWER DOWNLOAD EXAMIANS APP
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 0.58 1.72 0.5 0.2 0.58 1.72 0.5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is an exothermic reaction? None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature. Increases Increases linearly Remains unchanged Decreases Increases Increases linearly Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The value of Trouton's ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids. Non-polar Polar Both A & B Neither A nor B Non-polar Polar Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively? 756.2 880.5 780.5 801.5 756.2 880.5 780.5 801.5 ANSWER DOWNLOAD EXAMIANS APP
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