Which of the following processes have a S > 0? CH3OH(I) → CH3OH(s) N₂(g) + 3 H₂(g) → 2 NH3(g) CH4(g) + H₂O (g) → CO(g) + 3 H₂(g) Na2CO3(s) + H₂O(g) + CO₂(g) → 2 NaHCO3(s) All of these processes have a DS > 0.

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**Which of the following processes have a ΔS > 0?**

- ⃝ CH₃OH(l) → CH₃OH(s)  
- ⃝ N₂(g) + 3 H₂(g) → 2 NH₃(g)  
- ⃝ CH₄(g) + H₂O(g) → CO(g) + 3 H₂(g)  
- ⃝ Na₂CO₃(s) + H₂O(g) + CO₂(g) → 2 NaHCO₃(s)  
- ⃝ All of these processes have a ΔS > 0.  

**Explanation:**

This is a multiple-choice question asking which processes result in an increase in entropy (ΔS > 0). 

1. **CH₃OH(l) → CH₃OH(s):** 
   - This process involves the phase change from liquid to solid, generally associated with a decrease in entropy, ΔS < 0.

2. **N₂(g) + 3 H₂(g) → 2 NH₃(g):**
   - This reaction involves fewer gas molecules (4 to 2), typically associated with a decrease in entropy.

3. **CH₄(g) + H₂O(g) → CO(g) + 3 H₂(g):**
   - The number of gas molecules increases (2 to 4), typically associated with an increase in entropy.

4. **Na₂CO₃(s) + H₂O(g) + CO₂(g) → 2 NaHCO₃(s):**
   - The reaction results in fewer gas molecules and more solid product, likely associated with a decrease in entropy.

5. **All of these processes have a ΔS > 0:** This option suggests that all reactions result in an increase in entropy, which is not correct based on the individual analysis above.
Transcribed Image Text:**Which of the following processes have a ΔS > 0?** - ⃝ CH₃OH(l) → CH₃OH(s) - ⃝ N₂(g) + 3 H₂(g) → 2 NH₃(g) - ⃝ CH₄(g) + H₂O(g) → CO(g) + 3 H₂(g) - ⃝ Na₂CO₃(s) + H₂O(g) + CO₂(g) → 2 NaHCO₃(s) - ⃝ All of these processes have a ΔS > 0. **Explanation:** This is a multiple-choice question asking which processes result in an increase in entropy (ΔS > 0). 1. **CH₃OH(l) → CH₃OH(s):** - This process involves the phase change from liquid to solid, generally associated with a decrease in entropy, ΔS < 0. 2. **N₂(g) + 3 H₂(g) → 2 NH₃(g):** - This reaction involves fewer gas molecules (4 to 2), typically associated with a decrease in entropy. 3. **CH₄(g) + H₂O(g) → CO(g) + 3 H₂(g):** - The number of gas molecules increases (2 to 4), typically associated with an increase in entropy. 4. **Na₂CO₃(s) + H₂O(g) + CO₂(g) → 2 NaHCO₃(s):** - The reaction results in fewer gas molecules and more solid product, likely associated with a decrease in entropy. 5. **All of these processes have a ΔS > 0:** This option suggests that all reactions result in an increase in entropy, which is not correct based on the individual analysis above.
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