Endo/exothermic Flashcards
Why do endothermic reactions have a positive sloping curve?
It gets energy so the products have a higher energy state than the reactants.
Which one has a positive enthalpy change?
Endothermic
Why do exothermic reactions have a negative enthalpy change?
Heat is exiting the system into the surroundings, creating a negative enthalpy.
An increase in temperature shows a … reaction?
Exothermic (combustion)
Therefore a decrease in temperature shows…?
Endothermic
Energy released in bond formation is greater than the energy used to break the bonds
=exothermic
Energy needed to break bonds is greater than the energy released from new bonds
=endothermic
Bond breaking is?
Endothermic
Bond making is?
Exothermic
Which one has a negative sloping curve?
Exothermic- It gives out heat, so energy is lost
