Although, nitrogen does not adsorb on a surface at room temperature, it adsorbs on the surface at 83 K. Which one of the following statements is correct?

Options

A. At 83 K, there is formation of monolayer.
B. At 83 K, nitrogen is adsorbed as atoms
C. At 83 K, nitrogen molecules are held by chemical bonds.
D. At 83 K, there is formation of multimolecular layers.

Answer

D

Explanation

At 83 K physical absorption takes place effectively so multimolecular layers formed