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What is the enthalpy change for the reaction 2Na + Cl2 → 2NaCl?
What is the enthalpy change for the reaction 2Na + Cl2 → 2NaCl?
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Practice Questions
1 question
Q1
What is the enthalpy change for the reaction 2Na + Cl2 → 2NaCl?
-411 kJ
-240 kJ
0 kJ
411 kJ
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The enthalpy change for the formation of NaCl from its elements is -411 kJ.
Questions & Step-by-step Solutions
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Q
Q: What is the enthalpy change for the reaction 2Na + Cl2 → 2NaCl?
Solution:
The enthalpy change for the formation of NaCl from its elements is -411 kJ.
Steps: 5
Show Steps
Step 1: Identify the reaction: 2Na + Cl2 → 2NaCl.
Step 2: Understand that this reaction is the formation of sodium chloride (NaCl) from its elements: sodium (Na) and chlorine (Cl2).
Step 3: Look up the standard enthalpy change for the formation of NaCl from its elements.
Step 4: Find that the enthalpy change for this reaction is -411 kJ.
Step 5: Conclude that the enthalpy change for the reaction 2Na + Cl2 → 2NaCl is -411 kJ.
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