Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when excessive heat energy causes catalyst poisoning?
A)Decreased reaction rate✓
B)Increased product selectivity
C)Enhanced catalyst surface area
D)Improved catalyst dispersion
💡 Explanation
High temperatures cause catalyst poisoning via sintering--decreasing surface area and active sites--because the activation energy for sintering is exceeded; therefore the reaction rate decreases, rather than altering selectivity or improving catalyst properties.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome occurs when heavy isotopes accumulate inside a Tokamak's divertor?
- Which consequence results when a Strontium-90 radiation source self-heats?
- Which mechanism hinders electron mobility within a crystal lattice when thermal gradients are extreme?
- Which outcome occurs when a pulsed radar system's clock drifts during signal propagation?
- Which outcome follows the weakening of strong nuclear force?
- Which risk increases when high voltage electrolytic capacitor terminals corrode?
