specific stuff Flashcards
what happens once you reach equilibrium?
forward and backward reactions happen at the same time
does the volumes change once forward and backward reactions are happening at the same rate
no, vol remains constant
what is chateliers principle
any changes you include position of equilibrium will shift to counteract it
where will equilibrium shift if you increase pressure
equilibrium will shift to favour side w less moles of gas
what does higher temp and pressure do to equillibrium
means you reach equilibruim quicker
what is a standard solution
known concentration
why do you draw the start line in chromatography w pencil
its insoluble
how can you tell if a substance is pure in chromatography
if it only has one dot
how can you tell if a substance is very soluble in chromatography
more soluble = travel up paper more
def of solvent front
dist solvent travels (measure from pencil line)
stationary phase chromatography
not moving
mobile phase def
solvent moving up
how does the temp of surroundings change from exo reaction
increases
why do metallic materials have high mp
strong electrostatic force of attraction between positive ions and sea of delocalised electrons
where are intramolecular bonds
inside molecules
