Calculate the energy change for a pure substance over a temperature range.The following information is given for ethanol at 1 atm:boiling point = 78.40 °CAHvap(78.40 °C) = 837.0 J/gAHf(-114.5 °C) = 109.0 J/gspecific heat gas =1.430 J/g °C specific heat liquid = 2.460 J/g °Cmelting point = -114.5 °CA 24.00 g sample of liquid ethanol is initially at -2.90 °C. If the sample is heated at constant pressure (P = 1 atm), calculate theamount of energy in kJ needed to raise the temperature of the sample to 105.10 °C.kJCheck & Submit AnswerShow Approach1136O ENG/19/2TPenterpause* shiftaltctrl

The question is based on the concept of chemical thermodynamics. it involves application of Hess…

The following information is given for ethanol at 1 atm: boiling point= 78.40 °C AHap(78.40 °C) = 837.0 J/g %3D melting point = -114.5 °C AH(-114.5 °C) = 109.0 J/g %3D fus specific heat gas =1.430 J/g °C specific heat liquid = 2.460 J/g °C A 24.00 g sample of liquid ethanol is initially at-2.90 °C. If the sample is heated at constant pressure (P= 1 atm), calculate the amount of energy in kJ needed to raise the temperature of the sample to 105.10 °C. !! kJ Check & Submit Answer Show Approach

The following information is given for ethanol at 1 atm: boiling point= 78.40 °C AHap(78.40 °C) = 837.0 J/g %3D melting point = -114.5 °C AH(-114.5 °C) = 109.0 J/g %3D fus specific heat gas =1.430 J/g °C specific heat liquid = 2.460 J/g °C A 24.00 g sample of liquid ethanol is initially at-2.90 °C. If the sample is heated at constant pressure (P= 1 atm), calculate the amount of energy in kJ needed to raise the temperature of the sample to 105.10 °C. !! kJ Check & Submit Answer Show Approach

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 61E: A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/C g) and a 10.00-g sample of...

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