organic 1 Flashcards
gas
domestic fuel
petrol
cars
kerosene
aircrafts
diesel
cars+lorries
sigma bond joins
carbon to 4 other atoms
sigma bond
overlap of 2 orbitals (which each contain one electron) the bond has 2 shared electrons one from each orbital
tetrahedral shape in alkanes
the repulsion of atoms around a carbon result in 3d tetrahedral arrangement
how does the sigma bond affect movement of atoms
allow atoms to rotate freely so they can make different shapes. Shapes are not rigid
how is boiling point of alkanes affected by chain length
bp increases with chain length as the sa increases and there are more surface points of contact resulting in Greater London forces
how is boiling point of alkanes affected by branches
branched isomers have lower bp
1. fewer surface point of contact between molecules and weaker London forces
2. the shape means the branches get in the way and prevent molecules form getting as close as when straight, weaker lld forces
incomplete combustion products
co/c and water
complete combustion products
co2 and water
bromination of methane initiation reaction
br-br=br+br
bromination of methane step 1 propagation
Br.+ch4=hBr+ch3.
bromination of methane step 2 propagation
Ch3.+Br2=Ch3Br+Br.
