Diploma Chemical Engineer Interview Questions and Answers for Freshers

Mass flux is the amount of mass passing through a unit area per unit time. Kick's law relates to the energy required for size reduction.

• Mass flux is a measure of the amount of mass flowing through a given area per unit time.

• It is commonly used in chemical engineering to describe the flow of fluids through pipes or other conduits.

• Kick's law is a relationship between the energy required for size reduction and the size reduction ratio.

• It is often used in the design of crushing e...read more

Mass transfer is the movement of substances from one place to another due to a concentration gradient.

• Mass transfer involves the transfer of mass or substances between phases, such as gas-liquid, liquid-liquid, or solid-liquid.

• It occurs due to differences in concentration, temperature, pressure, or other driving forces.

• Examples of mass transfer include the evaporation of water from a wet surface, the diffusion of gases in the atmosphere, and the extraction of solutes from a l...read more

The question relates to the calculation of mass flux and the use of the Ja equation.

• Mass flux is a measure of the amount of mass passing through a given area per unit time.

• It is calculated by dividing the mass flow rate by the area.

• Ja is a dimensionless quantity used in the study of mass transfer.

• It represents the concentration gradient along a distance in a system.

• Ja is calculated using the diffusion coefficient (Dab) and the concentration gradient (dca/dz).

• Negative values o...read more