Ethanol, CH;CH,OH, is used as a gasoline additive because it boosts octane ratings. Gasoline that contains ethanol is known asgasohol. Calculate the amount of energy released by burning one gallon of ethanol. The density of ethanol is 0.787 g/mL.1 gallon = 3.785 LAH"{(CO2(s)) = -393.5 kJ/molAH?(H2O() = -285.83 kJ/molTABLEAVERAGE BOND ENERGIES*Diatomic Molecules (Dissociation Energy of Gaseous Molecules)H-H435F-FCI-CI1550-0495H-F240565430N=0N=NC=0605H-CIH-BrBr-Br1901509453651070H-I295Single Covalent Bonds (Average Values)Si- SiSi-FSi-CI415225H-CH-NC-CC-NC-0C-Si345N-N1600-01454505653900-Si0-P390305360N-O200H-O460320N-F285335H-Si300265Si-Br310N-CIP-PP-FP-CI2002100-F0-CI0-Br190H-PH-S320C-PSi-N320220200365145315C-S270Sn-Sn490H-Te240C-FSn-CI320485330275215S-0S-FS-SS-CI265C-CIC-BrP-BrP-I270285185240C-As-CI295255Multiple Covalent Bonds (Average Values)C=CC=NC=C615420605545N=N835890C=NC=0N=0750-800* 0=P0=S615C=S575515* All values are in kilojoules per mole (kJ/mol) and are rounded to the nearest 5 kJ/mol.*c=0 bond energy in CO2x 10kJ

Given the volume of ethanol burned, V = 1 gallon Density of ethanol, d = 0.787 g/mL Required…

Ethanol, CH;CH,OH, is used as a gasoline additive because it boosts octane ratings. Gasoline that contains ethanol is known as gasohol. Calculate the amount of energy released by burning one gallon of ethanol. The density of ethanol is 0.787 g/mL. 1 gallon = 3.785 L AH°{(CO2(s)) = -393.5 kJ/mol AH°{(H20O() = -285.83 kJ/mol TABLE AVERAGE BOND ENERGIES* Diatomic Molecules (Dissociation Energy of Gaseous Molecules) H-H 435 F-F 155 0-0 495 605 H-F H-CI H-Br H-I 565 CI-CI 240 N=0 N=N C=0 430 Br- Br 190 150 945 1070 365 295 Single Covalent Bonds (Average Values) 345 305 360 C-C Si- Si 225 N-N 160 145 H-C H-N H-O 415 N-O N-F N-CI 390 C-N C-0 Si-F 565 390 310 320 200 Si 0-P 450 335 Si-CI 460 320 320 365 240 285 200 210 C-Si C-P H-Si 300 Si-Br Si-N 0-F 190 220 P-P CI H-P H-S 265 C-S C-F C-CI C-Br C-I 270 Sn-Sn Sn-CI 145 315 P-F 490 0-Br S-0 200 265 H-Te P-CI 320 485 330 275 215 P-Br P-I As-CI 270 185 295 S-F S-S S-CI 285 240 255 Multiple Covalent Bonds (Average Values) C=C N=N 420 C=C 835 615 615 890 C=N C=0 N=0 605 545 515 C=N 750-800* 0=P 575 C=S 0=S *All values are in kilojoules per mole (kl/mol) and are rounded to the nearest 5 kJ/mol. *c=0 bond energy in CO2 x 10 i kJ

Ethanol, CH;CH,OH, is used as a gasoline additive because it boosts octane ratings. Gasoline that contains ethanol is known as gasohol. Calculate the amount of energy released by burning one gallon of ethanol. The density of ethanol is 0.787 g/mL. 1 gallon = 3.785 L AH°{(CO2(s)) = -393.5 kJ/mol AH°{(H20O() = -285.83 kJ/mol TABLE AVERAGE BOND ENERGIES* Diatomic Molecules (Dissociation Energy of Gaseous Molecules) H-H 435 F-F 155 0-0 495 605 H-F H-CI H-Br H-I 565 CI-CI 240 N=0 N=N C=0 430 Br- Br 190 150 945 1070 365 295 Single Covalent Bonds (Average Values) 345 305 360 C-C Si- Si 225 N-N 160 145 H-C H-N H-O 415 N-O N-F N-CI 390 C-N C-0 Si-F 565 390 310 320 200 Si 0-P 450 335 Si-CI 460 320 320 365 240 285 200 210 C-Si C-P H-Si 300 Si-Br Si-N 0-F 190 220 P-P CI H-P H-S 265 C-S C-F C-CI C-Br C-I 270 Sn-Sn Sn-CI 145 315 P-F 490 0-Br S-0 200 265 H-Te P-CI 320 485 330 275 215 P-Br P-I As-CI 270 185 295 S-F S-S S-CI 285 240 255 Multiple Covalent Bonds (Average Values) C=C N=N 420 C=C 835 615 615 890 C=N C=0 N=0 605 545 515 C=N 750-800* 0=P 575 C=S 0=S All values are in kilojoules per mole (kl/mol) and are rounded to the nearest 5 kJ/mol. c=0 bond energy in CO2 x 10 i kJ

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question 15.62
Calculate AH for the following reaction, given the data in the table below: H2SO4() → So:(g) + H2O(g) AH = ??? kJ/mol H2S(g) +202(g)→ H2SO4(1) AH = -749.7 kJ H,S(g) + 202(g) → SO3(g) + H2O(1) AH = -355.0 kJ H20(1) H20(g) AH = +53.95 kJ
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You may want to reference (Pages 187 - 190) Section 5.7 while completing this problem. Part C Using values from Appendix C, calculate the value of AH° for each of the following reactions. 2CuO(s) +NO(g)→CU2O(s) +NO2 (g) Express your answer using three significant figures. ? ΔΗ3 kJ Submit Request Answer Part D 4NH3(g) + O2 (g)→2N2H4(g) +2H2O(1) Express your answer using five significant figures. ? AĦgm = kJ
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