Real Gases, Isotherms and Critical Conditions MCQ

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• What is the heat of neutralization for the strong acid + strong base?
  ক

  -13.7 kcal/mole

  খ

  13.7 kcal/mole

  গ

  22.4 kcal/mole

  ঘ

  -22.4 kcal/mole
• How much amount of heat is released when a weak acid reacts with the strong base?
  ক

  < -57.1 kJ/mole

  খ

  > -57.1 kJ/mole

  গ

  >-77.8 kJ/mole

  ঘ

  <-77.8 kJ/mole
• What is the enthalpy of neutralization?
  ক

  Enthalpy of hydration of anhydrous o partially hydrated salts

  খ

  Heat released when one-gram equivalent of an acid is neutralized by one-gram equivalent to base

  গ

  Energy released when new bonds are made between ions and water molecules

  ঘ

  It is the measure of bond strength in the chemical bond
• What is the enthalpy of hydration?
  ক

  It is the measure of bond strength in the chemical bond

  খ

  Energy released when new bonds are made between ions and water molecules

  গ

  Power required for the utilization of physical sources

  ঘ

  Internal energy per unit mass
• What is lattice enthalpy?
  ক

  Enthalpy change required in the formation of an ionic compound from gaseous ions

  খ

  It is a state of species at specified conditions

  গ

  A reaction which forms a single compound from its constituent elements

  ঘ

  It is the average of enthalpies required to dissociate the bond
• ΔHf = V + ½ B + IEM – EAX + UL. What is V in this equation?
  ক

  Enthalpy of sublimation

  খ

  Bond energy

  গ

  Ionization energy

  ঘ

  Electron affinity
• Born Haber’s cycle used to calculate lattice energy.
  ক

  False

  খ

  True
• Integral enthalpy of a solution depends upon ____________
  ক

  Viscosity

  খ

  Temperature of the solute

  গ

  Density

  ঘ

  Nature of solute
• What is Integral enthalpy of a solution?
  ক

  Enthalpy change when one mole of the solute is dissolved in a definite quantity of solvent to produce a solution

  খ

  Enthalpy change when one mole of a compound combines with the requisite amount of oxygen to give products in stable forms

  গ

  Average of enthalpies required to dissociate the bond

  ঘ

  It is the change of standard enthalpy when one mole of the compound is formed starting from the requisite number of elements in their stable state of aggregation
• What is the difference between the energy of resonance hybrid and resonating structure?
  ক

  Resonance hybrid have lower energy

  খ

  Resonance hybrid have higher energy

  গ

  Resonance hybrid is equal to resonating structure

  ঘ

  There is no difference