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Using the Following Thermochemical Equation, Determine the Amount of Heat

Question 129

Multiple Choice

Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6) . 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(g) Using the following thermochemical equation, determine the amount of heat produced per kg of CO<sub>2</sub> formed during the combustion of benzene (C<sub>6</sub>H<sub>6</sub>) . 2C<sub>6</sub>H<sub>6</sub>(l) + 15O<sub>2</sub>(g) → 12CO<sub>2</sub>(g) + 6H<sub>2</sub>O(g) H°<sub> </sub>= -6278 kJ A) 1.43<sub> </sub>× 10<sup>5</sup> kJ (kg CO<sub>2</sub>) <sup>-1</sup> B) 2.30<sub> </sub>× 10<sup>4</sup> kJ (kg CO<sub>2</sub>) <sup>-1</sup> C) 4.34<sub> </sub>× 10<sup>4</sup> kJ (kg CO<sub>2</sub>) <sup>-1</sup> D) 1.19 × 10<sup>4</sup> kJ (kg CO<sub>2</sub>) <sup>-1</sup> E) 8.40<sub> </sub>× 10<sup>5</sup> kJ (kg CO<sub>2</sub>) <sup>-1</sup> H° = -6278 kJ


A) 1.43 × 105 kJ (kg CO2) -1
B) 2.30 × 104 kJ (kg CO2) -1
C) 4.34 × 104 kJ (kg CO2) -1
D) 1.19 × 104 kJ (kg CO2) -1
E) 8.40 × 105 kJ (kg CO2) -1

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