6.18   For the reaction,  2 Cl (g) \rightarrow Cl_2 ( g), what are the signs of  \Delta H \: \: and \: \: \Delta S ?

Answers (1)
M manish

The given reaction represents the formation of a chlorine molecule from its atom. Bond formation taking place, therefore the energy is released during this. So, \Delta H is negative.

 Two moles of an atom have more randomness than the one mole of chlorine. So, spontaneity is decreased. Hence \Delta S is negative.