Hydrogenation of Double and Triple Bonds Is an Important Industrial $\degree$

question 61

Multiple Choice

Hydrogenation of double and triple bonds is an important industrial process. Calculate (in kJ) the standard enthalpy change ?H $\degree$ for the hydrogenation of ethyne (acetylene) to ethane.

• A) -296 kJ
• B) -51 kJ
• C) 51 kJ
• D) 296 kJ
• E) 381 kJ

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