Question
Asked Nov 25, 2019
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Which reaction is exothermic?

A) 4PCl5(s) + 452kcal --> P4(s) + 10Cl2(g)

B) P4(s) + 10Cl2(g) --> 4PCl5(s) + 435.2kcal

C) 4PCl3(l) + 304.0kcal --> P4(s) + 6Cl2(g)

D) N2 + O2 + 43.2kcal --> 2NO

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Exothermic reaction is a type of chemical reaction which releases energy in the form of light or heat. The sign of enth...

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