Energy Changes Flashcards
1
Q
Exothermic
A
Reactions release heat energy.
The objects become colder
and the surroundings become warmer as they gain energy.
The enthalpy of the product is less than the enthalpy of reactants.
Negative
2
Q
Bond forming
A
Is exothermic, energy is released as bonds form in products.
3
Q
Endothermic
A
Reactions on absorb heat energy from the surroundings.
The objects become hotter
And the surroundings become colder.
The enthalpy of the product is greater than the enthalpy of reactants.
Positve
4
Q
What energy is required for energy change
A
Activation enegry.
5
Q
Bond breaking
A
Is endothermic energy is required to break bonds in reactants.
