Fuels (Exam q's) Flashcards
1
Q
Explain difference in viscosity
-> biodiesel V petrodiesel
A
Bonding
* Non-polar molecule - only dispersion forces
* Polar molecule - dipole-dipole / h-bonds etc
//polar = stronger attraction = higher viscosity
2
Q
Why is methane (biomass) considered a renewable fuel but methane (fossil fuels) is not?
A
- Renewable fuels - produced from plant material and can be readily replenished in a short period of time
- Non-renew. fuels - cannot be quickly replenished / consumed faster than produced