State the principle and equation of thermite process.

Give the principle involved in each of the give processes : (a) Mond process for refining of Ni, (b) Column chromatography for purification of rare elements.

State the principle of an ac generator.

State the principle of A.C generator

Define degrees of freedom and state the principle of cquiportion of energy.

State the entropy principle.

State the principle and prospect of Cryopreservation.

State the principle of formation of electromagnetic radiation.

State the principle of conservation of electric charge

What is the principle involved in Bessemer process ?

Write the principle behind the froth-floatation process. What is the role of collectors in this process?