Solution:

∆H and ∆S are negative

The given response addresses the development of chlorine particle from chlorine molecules.

Here, bond development is occurring. Along these lines, energy is being delivered. Thus, ∆H is negative.

Likewise, two moles of iotas have more haphazardness than one mole of a particle. Since immediacy is diminished, ∆S is negative for the given response.