Ethyl Chloride, C₂H₅Cl, Is Used as a Local Anesthetic

question 60

Multiple Choice

Ethyl chloride, C₂H₅Cl, is used as a local anesthetic. It works by cooling tissue as it vaporizes; its heat of vaporization is 26.4 kJ mol^-1. How much heat could be removed by 20.0 g of ethyl chloride?

• A) 8.18 kJ
• B) 341 kJ
• C) 528 kJ
• D) 3410 kJ

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Definitions:

Quota Rents

The earnings that accrue to the licensee of an import license when the government imposes a quota.

Import Licenses

Official permissions required by governments for the importation of certain goods, often used to control the volume and types of goods entering a country.

U.S. Trade Protection

Policies and measures implemented by the United States government to protect its industries from foreign competition, including tariffs, quotas, and subsidies.

Import Quota

A government-imposed limit on the quantity or value of goods that can be imported into a country.