Although, nitrogen does not adsorb on a surface at room temperature, it adsorbs on the surface a...

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Although, nitrogen does not adsorb on a surface at room temperature, it adsorbs on the surface at \( 83 \mathrm{~K} \). Which one of the following statements is correct?
(a) At \( 83 \mathrm{~K} \), there is formation of monolayer
(b) At \( 83 \mathrm{~K} \), nitrogen is adsorbed as atoms
(c) At \( 83 \mathrm{~K} \), nitrogen molecules are held by chemical bonds
(d) At \( 83 \mathrm{~K} \), there is formation of multimolecular layers
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