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

Question

Quizplus · Accepted Answer

According to Le Chatelier's principle, increasing pressure favors the reaction that produces fewer moles of gas. Since there are fewer moles of gas on the product side, increasing pressure will shift the equilibrium toward the products. Therefore, high pressure is favorable. Additionally, the reaction is exothermic and releasing heat will shift the equilibrium back towards the reactants. This means that low temperature is also favorable. Therefore, the best choice is low temperature, high pressure.

Ethane Can Be Formed by Reacting Acetylene with Hydrogen Δ\DeltaΔ H°rxn = -311 KJ Under Which Reaction Conditions Would You

Ethane Can Be Formed by Reacting Acetylene with Hydrogen $\Delta$ H°_rxn = -311 KJ
Under Which Reaction Conditions Would You