Chemistry Topic 5 Flashcards
(9 cards)
what is an exothermic reaction
an exothermic reaction is a reaction that give out heat to its surroundings
what is an endothermic reaction
an endothermic reaction is a reaction that takes heat from the surroundings causing a decrease in temperature
what are reaction profiles
reaction profiles show the energy of a reactant and how it changes over time
in a reaction profile, what is the initial rise in energy called
the initial rise in energy is called the activation energy
what is activation energy used for
activation energy is used to start a reaction
which one needs more activation energy, exothermic on endothermic
endothermic needs more activation energy
what must be supplied to break bonds
energy must be supplied to break bonds
what type of reaction breaks bonds
an endothermic reaction breaks bonds
what type of reaction forms new bonds
an exothermic reaction forms new bonds
