Exothermic And Endothermic Reactions Flashcards
Why is how much total energy the reactants have and the total energy the products have important ?
When plotting it on a reaction profile
You put the reactants on the left and the products on the right
If a reaction looses energy that it is what ?
Energy in the form of heat has been released/ transferred to its surroundings meaning it is exothermic
If we do a reaction in a sealed container it is beneficial because ?
We can measure the increase or change in temp
What’s a common type of exothermic reaction ?
Combustion
Fuels are burned
Also oxidation reactions
What is an exothermic reaction ?
A reaction that releases energy often in the form of heat to its surroundings
What is an endothermic reaction ?
A reaction that takes in e energy in the form of heat from its surroundings
If we wanted to draw a reaction profile for an Endothermic reaction what would the reactants and products look like
The reactants would be on the left but lower than the products over on the right
What is activation energy ?
The minimum amount of energy the reactant particles need in order to collide with each other and react
How do you draw a graph for these things ? Visualize it
Do a line on the right for the reactants and a line on the left for the products
Draw a curve going up and then a lot down (the small up is the activation energy) or up and then small amount down (the long bit going up until it curves is the activation energy)
