C5 Flashcards
what is the energy required to start a reaction called
activation energy
what are chemicals made of
particles that have their own energy
in an exothemic reaction, what happens to the energy
it’s given out to the surroundings
in an exothermic reaction, is the products energy lever higher or lower than the reactants?
lower, as energy is given out
what are reaction profiles used for?
showing the relative energies of products and reactants
showing activation energy
showing the overall energy change of a reaction
how can you recognise an exothermic reaction has taken place
a rise in temperature in the surroundings
how can you recognise an endothermic reaction has take place
a fall in temperature in the surroundings
in an endothermic reaction what happens to the energy
it’s taken in from the surroundings
in an endothermic reaction, is the energy of the products higher or lower than the reactants
higher because there is more energy. taken in
