Ethane Can Be Formed by Reacting Acetylene with Hydrogen

question 79

Multiple Choice

Ethane can be formed by reacting acetylene with hydrogen. C₂H₂(g) + 2H₂(g) C₂H₆(g) H°_rxn = -311 kJ
Under which reaction conditions would you expect to have the greatest equilibrium yield of ethane?

• A) high temperature, high pressure
• B) low temperature, high pressure
• C) high temperature, low pressure
• D) low temperature, low pressure
• E) none of the above, unless a catalyst is present

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