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

453
453

448
448

297
297

594

Answer 1

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

Each hydroiodic acid (HI) molecule has one H-I bond. The bond energy for one H-I bond is given as 297 kJ/mol.

Since we are producing 2 moles of HI, we will have:

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

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