4.8 Energy And Reversible Reactions Flashcards
A reversible reaction is endothermic one way. What must the other way be?
Exothermic
What does the amount of energy in the exothermic reactions exactly equal?
The amount of energy taken in by the endothermic reaction
What reaction is it when blue copper sulfate crystals are heated?
Endothermic
What is the word equation for the endothermic reaction of blue copper sulfate crystals?
Blue crystals of hydrated copper sulfate white powder of anhydrous copper sulfate + water
What does anhydrous mean?
A substance that doesn’t contain water
What does hydrated mean?
A substance that does contain water
Why must blue copper sulfate be heated continuously to change in into anhydrous copper sulfate?
It is an endothermic reaction so requires energy to break bonds
Why does adding water to anhydrous copper sulfate cause the mixture to get hot?
It is n exothermic reaction so gives out energy to make bonds
What energy transfers are required in reversible reactions?
Equal but opposite
