A catalyst speeds up reactions by lowering activation energy, but it isn't consumed during the reaction.
what is meant by activation energy
minimum amount of energy that particles need to react
temperature
temp inc particles all move faster .so therefore they r gonna collide more frequently.the faster they move the more energy they have .so they have enough energy to make reaction happen
concentration
.more particles knocking in same volume .when pressure of gas is inc it means that the same number of particles have smaller space . collisions more frequent
what is the le chatelier 's principle
if a system at equilibrium is subjected to a change the system will adjust to counter act the change
in reversible reactions increasing temperature favours the endothermic reactions( as heat is needed for it ). one direction is always endothermic while the other is exothermic
