Nitrogen and oxygen react to form nitrogen monoxide, like this: N,(9)+O2(g) → 2 NO(g) The reaction is endothermic. Suppose a mixture of N,, O, and NO has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation change in composition shift in equilibrium O to the right The temperature is lowered. ? O to the left The pressure of NO will O (none) O to the right O to the left The temperature is raised. The pressure of O2 will ? O (none)

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## Reaction of Nitrogen and Oxygen to Form Nitrogen Monoxide

### Chemical Reaction:
\[ \text{N}_2(g) + \text{O}_2(g) \rightarrow 2 \text{NO}(g) \]

### Reaction Characteristics:
- The reaction is endothermic.

### Equilibrium Concept:
Suppose a mixture of \(\text{N}_2\), \(\text{O}_2\), and \(\text{NO}\) has reached equilibrium in a closed reaction vessel. It is important to predict the effect of certain perturbations on the composition of the mixture and determine the shift in equilibrium.

### Table of Perturbations and Effects:

| **Perturbation**                 | **Change in Composition** | **Shift in Equilibrium** |
|----------------------------------|---------------------------|--------------------------|
| The temperature is lowered.      | The pressure of \(\text{NO}\) will: [Select from options] | ◉ to the right <br> ○ to the left <br> ○ (none) |
| The temperature is raised.       | The pressure of \(\text{O}_2\) will: [Select from options] | ○ to the right <br> ◉ to the left <br> ○ (none) |

### Explanation of Diagrams:
- The table consists of columns for perturbations, changes in composition, and shifts in equilibrium directionality.
- For the first perturbation, when the temperature is lowered, the equilibrium shifts to the right, increasing the pressure of \(\text{NO}\).
- For the second perturbation, when the temperature is raised, the equilibrium shifts to the left, impacting the pressure of \(\text{O}_2\).
Transcribed Image Text:## Reaction of Nitrogen and Oxygen to Form Nitrogen Monoxide ### Chemical Reaction: \[ \text{N}_2(g) + \text{O}_2(g) \rightarrow 2 \text{NO}(g) \] ### Reaction Characteristics: - The reaction is endothermic. ### Equilibrium Concept: Suppose a mixture of \(\text{N}_2\), \(\text{O}_2\), and \(\text{NO}\) has reached equilibrium in a closed reaction vessel. It is important to predict the effect of certain perturbations on the composition of the mixture and determine the shift in equilibrium. ### Table of Perturbations and Effects: | **Perturbation** | **Change in Composition** | **Shift in Equilibrium** | |----------------------------------|---------------------------|--------------------------| | The temperature is lowered. | The pressure of \(\text{NO}\) will: [Select from options] | ◉ to the right <br> ○ to the left <br> ○ (none) | | The temperature is raised. | The pressure of \(\text{O}_2\) will: [Select from options] | ○ to the right <br> ◉ to the left <br> ○ (none) | ### Explanation of Diagrams: - The table consists of columns for perturbations, changes in composition, and shifts in equilibrium directionality. - For the first perturbation, when the temperature is lowered, the equilibrium shifts to the right, increasing the pressure of \(\text{NO}\). - For the second perturbation, when the temperature is raised, the equilibrium shifts to the left, impacting the pressure of \(\text{O}_2\).
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