Which of the Reactions Listed Below Would Have a Value $\Delta$

question 94

Multiple Choice

Which of the reactions listed below would have a value of $\Delta$ H° equal to zero?

• A) H-H \(\rightarrow\) 2H·
• B) H· + CH₃-H \(\rightarrow\) CH₃-H + H·
• C) CH₃· + CH₃· \(\rightarrow\) CH₃-CH₃
• D) CH₃· + CH₃-H \(\rightarrow\) CH₃-H + CH₃·
• E) Reactions (B)and (D)

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Definitions:

Primary Germ Layers

The three initial layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo from which all bodily tissues and organs develop.

Digestive Organs

Organs involved in the digestion process, including the mouth, esophagus, stomach, liver, gallbladder, pancreas, intestines, rectum, and anus.

Respiratory Organs

Organs involved in the process of breathing, including the nose, throat, larynx, trachea, bronchi, and lungs.

Extraembryonic Membrane

Membranes that support the development of the embryo, such as the amnion and chorion.