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

Options

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

Answer

B

Explanation

At 83 K, there is physisorption and hence multimolicular.