Question

Use the information in the table to answer the question.

Bond Between Atoms and Their Respective Electronegativity
Bond Bond Energy (kJ/mol)
H-I 297
H-H 435
I-I 151
Hydrogen and iodine gases react to produce hydroiodic acid according to the reaction.

H2+I2→2HI

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

(1 point)
Responses

594
594

453
453

297
297

448
448

Answer 1

To calculate the total bond energy in the products of the reaction \( H_2 + I_2 \rightarrow 2HI \), we need to consider the bonds formed in the products.

From the reaction, we see that 2 moles of hydroiodic acid (HI) are produced. The bond energy for the H-I bond is 297 kJ/mol.

Since there are 2 moles of HI, we need to calculate the total bond energy for 2 H-I bonds:

\[
\text{Total bond energy} = 2 \times \text{Bond energy of H-I}
\]
\[
\text{Total bond energy} = 2 \times 297 \, \text{kJ/mol} = 594 \, \text{kJ/mol}
\]

Therefore, the total bond energy in the products of the reaction is **594 kJ/mol**.