Download Aptitude Crack
img not found img not found

Mass Transfer - Engineering

Q1:

A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternery system containing twopairs of partially miscible liquids ?

A 0

B 1

C 2

D 3

ANS:A - 0

A plait point is the point on the solubility curve where the tie line reduces to a point. In a ternary system containing two pairs of partially miscible liquids, the number of plait points is 1. Explanation:

  1. Ternary System:
    • A ternary system consists of three components.
    • In a ternary phase diagram, there can be regions where two pairs of components are partially miscible with each other, resulting in a complex solubility behavior.
  2. Plait Point:
    • A plait point occurs when two phases of a ternary system are in equilibrium and the tie line connecting them reduces to a single point on the solubility curve.
    • At this point, the composition of the two coexisting phases is identical.
  3. Number of Plait Points:
    • In a ternary system containing two pairs of partially miscible liquids, there can be one plait point where the tie line reduces to a point on the solubility curve.
    • This occurs when the compositions of the coexisting phases are such that they coincide at a single point on the solubility curve.
In summary, for a ternary system containing two pairs of partially miscible liquids, there is typically one plait point where the tie line reduces to a point on the solubility curve.