Gibbs Free Energy

Mr. Andersen explains Gibbs Free Energy, focusing on making it understandable, especially in biology. He discusses spontaneous reactions, enthalpy, and entropy, using examples like a ball rolling, diffusion, and a cherry bomb. The video covers cellular respiration and photosynthesis, highlighting exergonic and endergonic reactions. It concludes with the role of ATP in energy conversion, emphasizing the importance of energy from the sun.

What is another term used for Gibbs Free Energy that might be easier to understand?

• Potential Energy

• Available Energy

• Kinetic Energy

• Thermal Energy

In a spontaneous reaction, what happens to the enthalpy of the system?

• It becomes zero

• It decreases

• It remains constant

• It increases

What does entropy measure in a system?

• The total energy

• The pressure

• The temperature

• The disorder or randomness

How does increasing temperature affect the likelihood of a spontaneous reaction?

• It decreases the likelihood

• It has no effect

• It makes the reaction impossible

• It increases the likelihood

What is the Gibbs Free Energy equation used to determine?

• The mass of reactants

• The speed of a reaction

• The color change in a reaction

• The spontaneity of a reaction

Which process is an example of an exergonic reaction?

• DNA Replication

• Protein Synthesis

• Cellular Respiration

• Photosynthesis

What is the role of ATP in cellular processes?

• It stores genetic information

• It acts as a structural component

• It transports oxygen

• It serves as an energy currency

What is the delta G value for a reaction at equilibrium?

• Greater than 0

• Less than 0

• Equal to 0

• Undefined

In photosynthesis, what is the source of activation energy?

• Water

• Carbon Dioxide

• Sunlight

• Oxygen

What happens to energy as it is converted through various processes in life?

• It becomes more disordered

• It disappears

• It becomes more ordered

• It remains constant