Recycling in a chemical process facilitates Enrichment of product All of these Increased yield Heat conservation TRUE ANSWER : ? YOUR ANSWER : ?
Number of gm moles of solute dissolved in one litre of a solution is called its Equivalent weight Molarity Molality Normality TRUE ANSWER : ? YOUR ANSWER : ?
Boiling point of a solution as compared to that of the corresponding solvent is More Less Same Either more or less; depends upon the solvent TRUE ANSWER : ? YOUR ANSWER : ?
Molar heat capacity of water in equilibrium with ice at constant pressure is None of these 1 ∞ TRUE ANSWER : ? YOUR ANSWER : ?
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 0.33 0.19 0.67 0.40 TRUE ANSWER : ? YOUR ANSWER : ?
With increase in the temperature of pure (distilled) water, its POH decreases and pH increases PH decreases and pOH increases PH and pOH both increases POH and pH both 4ecreases TRUE ANSWER : ? YOUR ANSWER : ?
Addition of a non-volatile solute to a pure solvent Both B and C Increases its boiling point Increases its freezing point Decreases its freezing point TRUE ANSWER : ? YOUR ANSWER : ?
With rise in temperature, the solubility of ammonia in water at a fixed pressure Remains unchanged Decreases Increases exponentially Increases TRUE ANSWER : ? YOUR ANSWER : ?
Enthalpy of formation of NH₃ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH₃ → N₂ + 3H₂, is equal to __________ kJ/kg. mole. -23 46 -92 92 TRUE ANSWER : ? YOUR ANSWER : ?
If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature. None of these It will not solidify even on It will undergo no change until The solvent begins to freeze out even before TRUE ANSWER : ? YOUR ANSWER : ?