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penza

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Question 1

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)DrH° = -6278 kJ

◦ 8.40 × 105 kJ (kg CO2)-1
◦ 4.34 × 104 kJ (kg CO2)-1
◦ 1.43 × 105 kJ (kg CO2)-1
◦ 2.30 × 104 kJ (kg CO2)-1
◦ 1.19 × 104 kJ (kg CO2)-1

Question 2

Using the following thermochemical equation, determine the amount of heat produced from the combustion of 24.3 g benzene (C6H6). The molar mass of benzene is 78.11 g mol-1

2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(g)DrH° = -6278 kJ

◦ 40.1 kJ C6H6
◦ 3910 kJ C6H6
◦ 977 kJ C6H6
◦ 1950 kJ C6H6
◦ 0.302 kJ C6H6


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Marked as best answer by penza on Nov 18, 2019

brbarasa

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penza

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Reply 2 on: Nov 18, 2019
Wow, this really help


samiel-sayed

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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