17. The enthalpy of formation for H20(g), CO2(g), and C2H5OH(1), in kJ/mol, are given as follows DH°[H2O(g)] = -241.8; DH;°[CO2(g)] = -393.5, and DH;°[C2H;OH(1)] = -277.6 How much energy is produced when 2.50 g of ethanol (C2H5OH) is completely burned? C2H5OH(I) + 302(g) 2CO2(g) + 3H2O(g); --> (A) 19.4 kJ (B) 49.5 kJ (C) 97.1 kJ (D) 67.0 kJ

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Chapter6: Thermochemistry
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Problem 111AE: At 298 K, the standard enthalpies of formation for C2H2(g) and C6H6(l) are 227 kJ/mol and 49 kJ/mol,...
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17. The enthalpy of formation for H20(g), CO2(g), and C2H5OH(1), in kJ/mol, are given as follows:
DH;°[H2O(g)] = -241.8; DH;°[CO2(g)] = -393.5, and DH;°[C2H5OH(1)] = -277.6
How much energy is produced when 2.50 g of ethanol (C2H5OH) is completely burned?
C2H5OH(I) + 3O2{g)
2CO2(g) + 3H20(g);
-->
(A) 19.4 kJ
(B) 49.5 kJ
(C) 97.1 kJ
(D) 67.0 kJ
Transcribed Image Text:17. The enthalpy of formation for H20(g), CO2(g), and C2H5OH(1), in kJ/mol, are given as follows: DH;°[H2O(g)] = -241.8; DH;°[CO2(g)] = -393.5, and DH;°[C2H5OH(1)] = -277.6 How much energy is produced when 2.50 g of ethanol (C2H5OH) is completely burned? C2H5OH(I) + 3O2{g) 2CO2(g) + 3H20(g); --> (A) 19.4 kJ (B) 49.5 kJ (C) 97.1 kJ (D) 67.0 kJ
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