Ethyl Chloride,C₂H₅Cl,is Used as a Local Anesthetic

question 20

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.How much heat could be removed by 10.0 g of ethyl chloride?

• A)4.09 kJ
• B)170 kJ
• C)264 kJ
• D)1700 kJ

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