The Mathematical Expression for the Change in Free Energy of a System

question 66

Multiple Choice

The mathematical expression for the change in free energy of a system is ΔG = ΔH - TΔS. Which of the following statements is correct?

• A) ΔS is the change in enthalpy, a measure of randomness.
• B) ΔH is the change in entropy, the energy available to do work.
• C) ΔG is the change in free energy.
• D) T is the temperature in degrees Celsius.

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Definitions:

Paramesonephric Duct

One of two embryonic tubes extending along the mesonephros and emptying into the cloaca; in the female, the duct forms the uterine tube, the uterus, and part of the vagina; in the male, it degenerates.

Ductus Deferens

Duct of the testicle, running from the epididymis to the ejaculatory duct; also called vas deferens.

Scrotum

A pouch of skin containing the testicles.

Second Stage

In the context of childbirth, the phase from full cervical dilation to the delivery of the baby.