Calculate E°_cell and Indicate Whether the Overall Reaction Shown Is $\to$

question 53

Multiple Choice

Calculate E°_cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous.
O₂(g) + 4H⁺(aq) + 4e^-
2H₂O(l) ;E° = 1.229 V
Al³⁺(aq) + 3e^-
Al(s) ;E° = -1.662 V
Overall reaction:
4Al(s) + 3O₂(g) + 12H⁺(aq) $\to$ 4Al³⁺(aq) + 6H₂O(l)

• A)E°_cell = -2.891 V,nonspontaneous
• B)E°_cell = -2.891 V,spontaneous
• C)E°_cell = 2.891 V,nonspontaneous
• D)E°_cell = 2.891 V,spontaneous
• E)Spontaneous,but none of these values of E°_cell is correct.

---

Definitions:

Epidermis

The epidermis is the outermost layer of the skin, providing a protective barrier against environmental damages, such as pathogens and UV radiation.

Dendritic Cells

Immune cells that process antigen material and present it on the surface to other cells of the immune system.

Desmosomes

Specialized structures in cell membranes that provide adhesion and mechanical linkage between neighboring cells.

Dense Irregular Connective Tissue

Dense irregular connective tissue is a type of connective tissue that has fibers (mostly collagen) that are arranged irregularly and densely to provide strength and resistance to stretching in multiple directions.