For the reaction, `2Cl(g) to Cl_(2)(g)`, what are the signs of `DeltaH and DeltaS`?
For the reaction, `2Cl(g) to Cl_(2)(g)`, what are the signs of `DeltaH and DeltaS`?
A. `+,+`
B. `+,-`
C. `-,-`
D. `-,+`
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Correct Answer - C
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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