Understanding Delta G and Equilibrium

The video tutorial explains the difference between non-standard and standard Delta G values using graphs. It covers product-favored and reactant-favored reactions, equilibrium constants, and how to interpret graphs to determine reaction spontaneity and equilibrium. The tutorial also includes a practical exercise for students to sketch a graph where the equilibrium constant equals one.

What is the primary purpose of using graphs in the context of Delta G values?

• To calculate the exact amount of reactants and products.

• To determine the speed of a reaction.

• To visually differentiate between non-standard and standard Delta G values.

• To measure the exact value of Delta G in a lab setting.

When Delta G naught is negative, what does it indicate about the reaction at equilibrium?

• The reaction is reactant-favored.

• The reaction is non-spontaneous.

• The reaction is product-favored.

• The reaction is at a standstill.

How is the equilibrium constant (k) related to a product-favored reaction?

• k is less than one.

• k is equal to zero.

• k is negative.

• k is greater than one.

What does a negative slope of the tangent on a Delta G graph indicate?

• The reaction is spontaneous.

• The reaction is non-spontaneous.

• The reaction is moving backward.

• The reaction is at equilibrium.

At what point on the graph does Delta G equal zero?

• At the end of the reaction.

• At the maximum point of the graph.

• At the start of the reaction.

• At the minimum point of the graph.

In a reactant-favored system, where does the equilibrium lie on the graph?

• Closer to the products.

• At the maximum point.

• At the midpoint.

• Closer to the reactants.

What is the value of Delta G naught for a reactant-favored system?

• Negative

• Zero

• Positive

• Undefined

What does a positive slope of the tangent on a Delta G graph indicate?

• The reaction is at equilibrium.

• The reaction is complete.

• The reaction is non-spontaneous.

• The reaction is spontaneous.

If the equilibrium constant k equals one, what can be inferred about Delta G naught?

• Delta G naught is negative.

• Delta G naught is undefined.

• Delta G naught is positive.

• Delta G naught is zero.

What does it mean for a reaction if the equilibrium constant k is exactly one?

• The reaction is reactant-favored.

• The reaction does not occur.

• The reaction has equal amounts of reactants and products.

• The reaction is product-favored.