Answer:
Fuels with large hydrocarbon molecules are more viscous than fuels with small hydrocarbon molecules
Explanation:
Viscosity refers to runniness of a liquid. Fuels with large hydrocarbon molecules are more viscous as longer chains of large hydrocarbon molecules are easily entangled. Fuels with small hydrocarbon molecules are comparatively viscous as shorter chains of small hydrocarbon molecules are less likely to become entangled.
