1.

For the reaction, 2Cl(g) to Cl_(2)(g), what are the signs of DeltaH and DeltaS?

Answer»

`+,+`
`+,-`
`-,-`
`-,+`

Solution :In the GIVEN REACTION, a MOLECULE of `Cl_(2)` is formed from its two gaseous atoms and the energy is relased witth the formation of BOND. Hence, `DeltaH` is negative. In this reaction randomness (entropy) ALSO decreases because 2 atoms of Cl have more randomness than one molecule of chlorine. hence, `DeltaS` is negative.


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