Use the information in the table to answer the question.

Question

Bond Bond Energy ( kJ/mol )
H–Cl 427
Cl–Cl 242
H–H 435
Hydrogen and chlorine gases react to produce hydrochloric acid according to the reaction.

H2+Cl2→2HCl

How much total bond energy, in kJ/mol , is in the products of the reaction?

(1 point)
Responses

677
677

854
854

427
427

435

Answer 1

To find the total bond energy in the products of the reaction \( H_2 + Cl_2 \rightarrow 2 HCl \), we first need to look at the bonds formed in the products, which are the \( H–Cl \) bonds in the \( 2 HCl \) molecules.

Since there are 2 molecules of \( HCl \), the total bond energy for the \( H–Cl \) bonds will be:

\[ \text{Total bond energy in products} = 2 \times \text{Bond energy of } H–Cl \] \[ = 2 \times 427 , \text{kJ/mol} = 854 , \text{kJ/mol} \]

Thus, the total bond energy in the products of the reaction is 854 kJ/mol.