Question

Question
Use the chemical reaction to answer the question.

H2+I2⇌2HI


What happens to the concentration of hydrogen iodide ( HI
) if more hydrogen gas ( H2
) is added to the system?

(1 point)
Responses

The amount of hydrogen iodide (HI
) remains the same.
The amount of hydrogen iodide ( h i ) remains the same.

The amount of hydrogen iodide (HI
) decreases.
The amount of hydrogen iodide ( h i ) decreases.

The amount of hydrogen iodide (HI
) increases.
The amount of hydrogen iodide ( h i ) increases.

The amount of hydrogen iodide (HI
) rapidly increases and then decreases.
The amount of hydrogen iodide ( h i ) rapidly increases and then decreases.
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Answer 1

In the given equilibrium reaction:

\[ \text{H}_2 + \text{I}_2 \rightleftharpoons 2 \text{HI} \]

If more hydrogen gas (H2) is added to the system, according to Le Chatelier's principle, the equilibrium will shift to counteract the change. In this case, the addition of hydrogen will shift the equilibrium to the right, towards the production of more hydrogen iodide (HI).

Therefore, the correct response would be:

**The amount of hydrogen iodide (HI) increases.**