Gibbs Free Energy of Reactions

The video tutorial explains Gibbs free energy, focusing on its application in aqueous solutions and biochemistry. It covers the equilibrium constant expression, detailing how to calculate it using concentrations of reactants and products. The relationship between delta G and equilibrium is discussed, emphasizing the significance of standard conditions. The tutorial also explains how to calculate delta G not at equilibrium using the reaction quotient, highlighting its importance in real-life scenarios like mass production and biological systems.

What is the primary focus of Gibbs free energy in biochemistry?

• Reactions in vacuum

• Reactions involving gases

• Reactions in aqueous solutions

• Reactions in solid state

In the equilibrium expression, which phases are included?

• Gases and aqueous solutions

• Only liquids

• Only gases

• Solids and liquids

How is the equilibrium constant (Keq) related to delta G standard?

• Keq is unrelated to delta G

• Keq is only used for gases

• Keq is used to calculate delta G standard

• Keq is the same as delta G

What does the degree sign in delta G indicate?

• High temperature

• Equilibrium conditions

• Non-standard conditions

• Low pressure

Why is it important to calculate delta G not at equilibrium?

• Most reactions are at equilibrium

• To understand spontaneous reactions

• To measure temperature changes

• To calculate pressure differences

What is the reaction quotient (Q) used for?

• Measuring temperature

• Calculating delta G not at equilibrium

• Determining equilibrium constant

• Calculating pressure

What must be known to calculate the reaction quotient (Q)?

• Temperature and pressure

• Concentrations of reactants and products

• Volume of the container

• Type of catalyst used