Which outcome occurs when a catalyst degrades in fuel cell?

💡 Explanation

Because the catalyst is essential for lowering activation energy and increasing cell reaction rate, catalyst degradation diminishes its overall effectiveness via catalyst poisoning; therefore reaction rate slows down rather than the other effects which are not directly related.

• Which mechanism explains signal degradation when radio waves propagate across long distances?
• Which mechanism inhibits complete heat transfer during flash evaporation?
• Which consequence results when the vapor pressure exceeds ambient pressure during isochoric heating of isobutane fuel?
• Which mechanism causes decreased reaction rate in solid-state electrolyte batteries at low temperatures?
• Which consequence results when extreme mass compresses spacetime near an object?
• Which outcome occurs when increasing reverse bias voltage on a Zener diode?