Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism causes increased viscosity in motor oil at low temperatures?
A)Van der Waals intermolecular attraction✓
B)Increased ionic conductivity
C)Phase transition to solid
D)Reduced hydrogen bond formations
💡 Explanation
Reduced kinetic energy allows the Van der Waals intermolecular attraction mechanism to dominate between oil molecules, increasing viscosity when they move closer; therefore, the oil thickens rather than remaining fluid due to rapid molecular motion at higher 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 circuit malfunction results following dielectric breakdown in smoothing circuit capacitors?
- Which outcome occurs when thermal energy increases in supercooled water?
- Which outcome results in steel bridge girders when increased grain boundary surface area limits dislocation movement?
- Which effect results when a high voltage gradient occurs between electrodes immersed in ionic solution?
- Which risk increases when a turbocharger cycle overspeeds?
- Which mechanism limits electromagnetic wave propagation through plasma at high densities?
