The Reaction That Represents the Standard Enthalpy of Formation for Sucrose

question 115

Multiple Choice

The reaction that represents the standard enthalpy of formation for sucrose (C₁₂H₂₂O₁₁) is:

• A) C₁₂H₂₂O₁₁(s) + 12 O₂ \(\rarr\) 12 CO₂(g) + 11 H₂O(g)
• B) 12 C(diamond) + 11 H₂(g) + 11/2 O₂(g) \(\rarr\) C₁₂H₂₂O₁₁(s)
• C) 12 C(graphite) + 11 H₂(g) + 11/2 O₂(g) \(\rarr\) C₁₂H₂₂O₁₁(s)
• D) 24 C(diamond) + 22 H₂(g) + 11 O₂(g) \(\rarr\) 2 C₁₂H₂₂O₁₁(s)
• E) C₁₂H₂₂O₁₁(s) \(\rarr\) 2 C(graphite) + 11 H₂(g) + 11/2 O₂(g)

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Definitions:

Epidermal

Relating to the epidermis, the outermost layer of skin, which provides a barrier against environmental damage.

Afterbirth

The placenta and fetal membranes expelled from the uterus following the birth of a baby.

Placental Stage

The third and final stage of childbirth where the placenta is delivered.

Trophoblast

The outer layer of a blastocyst, providing nutrients to the embryo and developing into a large part of the placenta.