Which consequence results when catalytic hydrogenation's hydrogen supply is exhausted?

💡 Explanation

Product selectivity decreases because **competitive adsorption** favors undesired pathways; therefore, the desired product yield decreases rather than a change of the kinetic order, because the catalyst surface becomes covered with reactants unevenly due to H-absence.

• Which risk increases in a nuclear reactor core during supercriticality?
• Which consequence results when epoxy used in carbon fiber laminates undergoes excessive crosslinking?
• Which risk increases when iron catalyst surface area declines?
• Which outcome occurs when transmitted light loses coherence?
• Which consequence arises from suppressing quantum tunnelling in electrochemical reactions?
• Which phenomenon causes decreased efficiency in steam turbines operating with wet steam?