1 MCQExplainer Asked: March 30, 2021In: Education The species which by definition has ZERO standard molar enthalpy of formation at 298 K is 1 thermodynamics
1 MCQExplainer Asked: March 30, 2021In: Education The enthalpy of vaporisation of a substance is 8400 J mol-1 and its boiling point is –173°C. The entropy change for vaporisation is : 1 thermodynamics
1 MCQExplainer Asked: March 30, 2021In: Education One mole of which of the following has the highest entropy? 1 thermodynamics
1 MCQExplainer Asked: March 30, 2021In: Education Third law of thermodynamics provides a method to evaluate which property? 1 thermodynamics
2 MCQExplainer Asked: March 27, 2021In: Education A weak acid HX has the dissociation constant 1 × 10-5 M. It forms a salt NaX on reaction with alkali. The degree of hydrolysis of 0.1 M solution of NaX is 2 thermodynamics
1 MCQExplainer Asked: March 27, 2021In: Education The pH of a 10-10 M NaOH solution is nearest to 1 thermodynamics
1 MCQExplainer Asked: March 27, 2021In: Education What is the pH of a 0.10 M solution of barium hydroxide, Ba (OH)2? 1 thermodynamics
1 MCQExplainer Asked: March 27, 2021In: Education Which of the following aqueous solutions will have highest pH? 1 thermodynamics
1 MCQExplainer Asked: March 27, 2021In: Education A physician wishes to prepare a buffer solution at pH = 3.85 that efficiently resists changes in pH yet contains only small concentration of the buffering agents. Which of the following weak acids together with its sodium salt would be best to use? 1 thermodynamicsx
1 MCQExplainer Asked: March 27, 2021In: Education The solubility of Ca3(PO4)2 in water is y mol/L. Its solubility product is: 1 thermodynamics
