Ethylene Dichloride Is an Effective Cooling Agent When Allowed to Evaporate

question 64

Multiple Choice

Ethylene dichloride is an effective cooling agent when allowed to evaporate. The heat of vaporization is 85.3 calories per gram. How much heat could be removed from the skin if 2.70 grams of ethylene dichloride were sprayed on and allowed to evaporate?

• A)31.6 cal
• B)230 cal
• C)0.00320 cal
• D)0.00400 cal

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