Stoichiometry If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times. 10 20 100 70 10 20 100 70 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is Independent of the temperature Unchanged by the pressure change Decreased with the increase in pressure Increased with the increase in pressure Independent of the temperature Unchanged by the pressure change Decreased with the increase in pressure Increased with the increase in pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Both A & B Below the critical temperature Neither A nor B At pressure below one atmosphere Both A & B Below the critical temperature Neither A nor B At pressure below one atmosphere ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Temperature Nature of solute Pressure Nature of solvent Temperature Nature of solute Pressure Nature of solvent ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases. Kinetic energy Total energy Potential energy Intermolecular forces Kinetic energy Total energy Potential energy Intermolecular forces ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about 0.40 0.19 0.33 0.67 0.40 0.19 0.33 0.67 ANSWER DOWNLOAD EXAMIANS APP
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