The following information is given for ethanol, C₂H5OH, at 1atm: AHvap (78.4 °C) = 38.6 kJ/mol boiling point = 78.4 °C specific heat liquid = 2.46 J/g °C At a pressure of 1 atm, kJ of heat are needed to vaporize a 39.5 g sample of liquid ethanol at its normal boiling point of 78.4 °C.
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Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
![The following information is given for ethanol, C₂H5OH, at 1atm:
boiling point = 78.4 °C
specific heat liquid
=
2.46 J/g °C
At a pressure of 1 atm,
AHvap (78.4 °C) = 38.6 kJ/mol
kJ of heat are needed to vaporize a 39.5 g sample of liquid ethanol at its normal boiling point of 78.4 °C.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe6ce2240-b3fe-4331-98ee-3937416f40f5%2F2d3c374c-ddea-4809-8779-d945b9715282%2Fwgt6qy_processed.png&w=3840&q=75)
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Given:
Sample of liquid ethanol = 39.5 g
Boiling point = 78.4°C
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