Q1: What is the degree of freedom of an absorption process in which only one component is transferred between phases ?

ANS:A - 3

The degree of freedom of an absorption process in which only one component is transferred between phases is two (2). In chemical engineering, the degree of freedom refers to the number of independent variables that can be varied without changing the number of phases or components in a system at equilibrium. In an absorption process involving the transfer of one component between phases, such as a gas being absorbed into a liquid phase, the system is described by two independent variables, typically chosen from temperature, pressure, or composition. For example, in a binary gas-liquid absorption system where only one gas component is being absorbed, the degree of freedom can be expressed as follows: 𝐹=𝐶−𝑃+2F=C−P+2 Where:

• 𝐹F = degree of freedom
• 𝐶C = number of components in the system (1 for the gas being absorbed + 1 for the liquid)
• 𝑃P = number of phases in the system (2 for gas and liquid phases)