Ethyl Chloride,C₂H₅Cl,is Used as a Local Anesthetic

question 45

Multiple Choice

Ethyl chloride,C₂H₅Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes.The heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 60.0 g of ethyl chloride?

• A)24.6 kJ
• B)1584 kJ
• C)2.28 kJ
• D)1703 kJ

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Definitions:

Sympathetic Chain

A part of the autonomic nervous system consisting of a series of ganglia located along both sides of the spine that regulate involuntary body functions.

Splanchnic Nerves

Nerves that innervate the internal organs, carrying fibers that influence the function of the gastrointestinal tract, liver, and other organs.

Gray Rami

Nerve fibers that connect the sympathetic ganglia to spinal nerves, conveying mostly unmyelinated postganglionic fibers.

Craniosacral

Pertaining to the cranium and sacrum, a therapeutic approach focusing on the flow of cerebrospinal fluid between these areas.