6.2 How Is Energy Transformed During
Chemical Reactions?
Activation energy
Activation energy, the energy required to a star in
a chemical reaction. Every push.
Activation energy is the energy required to overcome the
repulsive forces between the electron shells so that they can
move close enough together to react.
Chemical reactions
A chemical reaction is a process that forms or breaks the
chemical bonds that holds atoms together.
Chemical reactions convert one set of chemical
substances, the reactants, into another set, the
products.
All chemical reactions either release energy or require
an overall (net) input of energy.
Exergonic
Exergonic reactions release energy and absorb energy
from the surrounding. All exergonic reactions release
some of their energy as heat
Exergonic reactions are known as running downhill, from
higher to lower energy,
Endergonic
A reaction is endergonic if it requires a net input of
energy; that is if the products contain more energy
than the reactants.
Synthesizing complex biological molecules requires a net
input of energy. Endergonic
Endergonic reactions also known as uphill
reactions (reactants contains less energy
than the products).