Energy production Flashcards
1
Q
Renewable energy sources
A
Biofuels, solar, wind, Hydrogen gas
2
Q
Non-renewable energy sources
A
Fossil Fuels, Natural gas, petrodiesel
3
Q
Biodiesel > Petrodiesel
A
High viscosity, lower energy content per gram, Dipole-dipole, less impurities, higher boiling point, Hygroscopic (absorbs H2O molecules due to oxygen present), mostly carbon neutral
4
Q
Enthalpy
A
Energy that is absorbed or released in a chemical reaction
5
Q
Exothermic
A
Energy release, H = negative - graph starts high, ends low
6
Q
Endothermic
A
Energy absorbed/used, H = positive - graph starts low, ends high
7
Q
Amount of energy
A
q = m x C x ^T q = energy in Joules m = mass of substance BEING HEATED (water usually) C = specific heat capacity (4.18 for water) ^T = change in temp (oC)
