Ethyl Chloride,C₂H₅Cl,is Used as a Local Anesthetic

question 23

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 20.0 g of ethyl chloride?

• A)8)18 kJ
• B)341 kJ
• C)528 kJ
• D)3410 kJ

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