Question

The heat diffusion is which type of process?

(a) Conduction

(b) Convection

(c) Radiation

(d) Osmosis

This question was addressed to me in class test.

This interesting question is from Internal Mass Transfer and Reaction topic in section Heterogenous Reactions of Bioprocess Engineering

Answer 1

Correct choice is (b) Convection

For explanation: Convection is usually the dominant form of heat transfer in liquids and gases. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of unknown conduction (heat diffusion) and advection (heat transfer by bulk fluid flow).