Which outcome occurs when a nickel catalyst's surface area decreases in a hydrogenation reactor?

💡 Explanation

Reaction rate decreases significantly because fewer active sites are accessible, limiting the number of collisions via adsorption leading to a reduced reaction **rate of adsorption**. Therefore, the rate declines severely rather than equilibrium shifting, because concentration is unchanged, keeping activation energy steady.

• Which outcome results when exceeding the Knudsen number limit within miniature Stirling engines?
• Which risk increases when a turbine blade's crystal lattice misaligns?
• Which outcome occurs when exceeding an impeller's critical Reynolds number?
• Which outcome occurs when diesel fuel undergoes rapid cooling during phase separation?
• Which risk significantly increases during sustained nuclear fission?
• Which outcome occurs within cast iron when subjected to elevated temperature?