Binary Solutions MCQ

Test your knowledge with important Binary Solutions MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Binary Solutions MCQs at Bissoy

• When does the strain energy change can make a difference in the enthalpy of mixing in real solutions?
  ক

  When the temperature is high

  খ

  When the size difference between atoms is very large

  গ

  When the temperature is low

  ঘ

  When the size difference between atoms is very small
• The variation of activity with composition is given below, out of this which one obeys Raoults law__________
  ক

  1

  খ

  2

  গ

  4

  ঘ

  3
• Assuming that A and B mix to form a substitutional solid solution and that all configurations of A and B atoms are equally probable, the number of distinguishable ways of arranging the atoms on the atom sites, if N1=8 and N2=4 is_____ (N1, N2 are the number of atoms in A and B respectively).
  ক

  467

  খ

  499

  গ

  495

  ঘ

  500
• Partial molar free energy of a pure substance A or alternatively the chemical potential of A in the phase depends on_____
  ক

  Composition

  খ

  Volume

  গ

  Enthalpy

  ঘ

  Configuration
• The configurational entropy depends on _____
  ক

  Thermodynamic probability

  খ

  Volume

  গ

  Composition

  ঘ

  Frequency of mixing
• In case of an ideal system ΔH of mixing is _________
  ক

  Negative

  খ

  Positive

  গ

  Zero

  ঘ

  Cannot be determined
• If we allow inter diffusion to taken place between the elements A and B, there will be change in the free energy because of mixing, if the total molar free energy g of a purely mechanical mixture is 8 Jmol-1 and the ΔG of mix is 5Jmol-1, then the total free energy of the system is ____________
  ক

  3 Jmol-1

  খ

  13 Jmol-1

  গ

  40 Jmol-1

  ঘ

  15 Jmol-1
• In endothermic transformation the enthalpy of mixing is __________
  ক

  Less than zero

  খ

  Zero

  গ

  Greater than zero

  ঘ

  One
• In an exothermic transformation, the total free energy of the system will change far more drastically with composition at higher temperature compared to a lower temperature.
  ক

  False

  খ

  True
• If we consider that there are no volume and enthalpy changes caused by mixing, then the only contribution to the entropy will be__________
  ক

  Thermal

  খ

  Configurational

  গ

  Hydrostatic

  ঘ

  Rotational
• When X1 mole of A and X2 mole of B are brought together, the corresponding free energy of system is given by___________ (where G1 and G2 are Gibbs energy of pure X1, X2 respectively)
  ক

  X1*G1+X2*G2

  খ

  X1*G2+X2*G1

  গ

  X1*(G1+G2)

  ঘ

  X2*(G1+G2)