Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism causes a lower ignition temperature in catalytic converters?
A)Surface adsorption lowering activation energy✓
B)Increased reactant kinetic energy transfer
C)Decreased product chain termination rate
D)Enhanced convective heat transfer coefficient
💡 Explanation
Surface adsorption increases reactant concentration on the catalyst's surface, facilitating bond weakening, which provides an alternative reaction pathway; Catalysis thereby reduces the activation energy, so a converter rapidly reaches light-off, rather than relying solely on high temperatures.
🏆 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 effect results when a black hole tidally disrupts star?
- Which mechanism limits electron beam spatial coherence in transmission electron microscope (TEM) with aberration-corrected objective lenses?
- Which outcome occurs due to decreased neutron moderator density during nuclear fission?
- Which outcome occurs when chloride mixes with lead(II) solution?
- Which outcome occurs for light approaching extreme gravitational field strengths?
- Which risk increases when quenching steel too rapidly past the nose of its Time-Temperature-Transformation diagram?
