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Author Question: Ethyl chloride, C2H5Cl, is used as a local anesthetic. It works by cooling tissue as it vaporizes; ... (Read 61 times)

shenderson6

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Question 1

Ethanol (C2H5OH) melts at -114 °C. The enthalpy of fusion is 5.02 kJ mol-1. The specific heats of solid and liquid ethanol are 0.97 J g-1 °C-1 and 2.3 J g-1 °C-1, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -145 °C to liquid ethanol at -60 °C?
◦ -13.56
◦ 3859
◦ 9.96
◦ 8.88
◦ 6.58

Question 2

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?
◦ 528 kJ
◦ 341 kJ
◦ 8.18 kJ
◦ 3410 kJ


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Marked as best answer by shenderson6 on Nov 18, 2019

sarajane1989

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shenderson6

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Reply 2 on: Nov 18, 2019
YES! Correct, THANKS for helping me on my review


bassamabas

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Reply 3 on: Yesterday
Wow, this really help

 

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