Gibbs Free Energy

What is the equation for Gibbs Free Energy?

△G = △H - T△S

Not so much free but a ____________ energy

Available

Spontaneous reactions: once you give them a little _______ they will ____ on their own.

Push, own

Spontaneous reactions: They tend to __________ energy and give it their surroundings.

Release

Total Energy (__), which is enthalpy. In biology, our energy is in ________. In a spontaneous reaction it gets __________ or _____________.

H, bonds, smaller, decreases

Entropy (__) is a measure of the __________/randomness of a system. In spontaneous reaction, entropy __________.

Disorder, increases

Temperature (T), if we __________ the temperature the spontaneous reaction is more likely to happen.

Increase

What items make delta decrease, less than 0 (spontaneous)?

• Decrease in enthalpy (H)

• Increase in (entropy) (S)

If the delta G is greater than 0, it’s called a _________ reaction.

Endergonic

If delta G=0, then it is _____________.

Equilibrium

What kind of reaction is an exergonic reaction and how much energy does it require?

Exergonic reaction, certain amount

Why doesn’t sugar just explode on our countertops?

Activation energy barrier

What kind of reaction is photosynthesis?

Endergonic

Where does the activation energy come from for photosynthesis?

Light energy

Day to day, we use ATP, it is our energy ______, we can ______ it and then cash it in.

Coinage, store

What is the delta G value for breaking ATP down into ADP?

-30.5 KJ/mol OR -7.3 kcal/mol