1.

For the gas - phase decomposition , PCI_(5)(g)overset(Delta)hArr PCI_(3)(g) + CI_(2)(g):

Answer»

`DeltaH LT 0, DeltaS lt 0`
`DeltaH gt 0, DeltaS gt 0`
`DeltaH gt 0, DeltaS lt 0`
`DeltaH lt 0, DeltaS gt 0`

Solution :Reaction is endothermic and no. of MOLES increases on decomposition.


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