In an exothermic reaction, the enthalpy change is negative. Which of the following is also true for an exothermic reaction?
2 answers:
<u>Answer: </u>The correct statement is the products have a lower potential energy than the reactants.
<u>Explanation:</u>
Exothermic reactions are defined as the reactions in which the enthalpy change of a reaction is negative.
Enthalpy of a reaction is determined by the equation:
As, the enthalpy change of the reaction is negative, which means that the potential energy of the products is less than the potential energy of the reactants.
Hence, the correct statement is the products have a lower potential energy than the reactants.
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Answer ; The question is missing in some details, but here are he details ;
The two naturally occurring isotopes of bromine are
81Br (80.916 amu, 49.31%) and
79Br (78.918 amu, 50.69%).
The two naturally occurring isotopes of chlorine are
37Cl (36.966 amu, 24.23%) and
35Cl (34.969 amu, 75.77%).
Bromine and chlorine combine to form bromine monochloride, BrCl.
Explanation:
The detaile calculation is as shown in the attachment.
