Question:
The enthalpy change for the chemical reaction \( H_2 (g) \to H_2 O(l) \) is called enthalpy of
The enthalpy change for the chemical reaction \( H_2 (g) \to H_2 O(l) \) is called enthalpy of
Updated On: Nov 6, 2025
- vapourisation
- combustion
- fusion
- sublimation
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The Correct Option is B
Solution and Explanation
The reaction \( H_2 (g) + \frac{1}{2} O_2 (g) \to H_2 O (l) \) (assuming completion with oxygen) releases heat and is the combustion of hydrogen gas to form water. The enthalpy change for this reaction is the enthalpy of combustion.
Answer: combustion.
Answer: combustion.
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