Question

Calculate how many kilojoules of heat will be released from burning the 155 g of C6H6 mentioned in the previous problem (use textbook appendix II. B.). Also, write a couple of sentences explaining if it is this heat that contributes to global climate change or if it is something else about combustion reactions.

PREVIOUS PROBLEM:

1. Write and balance the chemical equation for the combustion of benzene (C₆H₆). Also calculate how many grams of carbon dioxide will form from the reaction of 155 g of C₆H₆.

PLEASE NOTE: Also, write a couple of sentences explaining if it is this heat that contributes to global climate change or if it is something else about combustion reactions.

Answer 1

* Enthalpy of combustion of Benzene Cho Cho ce +1502 6CQ (9) + 3 hoce, H) = -3267K4 Com) / (Molermass of G Ho a 6x12 +6X1. 3 GH mole - 788/mole) o Imole of Benzene releases 3287 kJ of heat 789 of Benzene releases 3267 KJ of heat 1559 of benzena releases 3287 x 155 kg of heat 78

= -32 67 x 155 KJ Benzene 78 2-6492012 KJ. so, 6492012 KJ of heat is released upon Combustion reaction of isso of Benzene. Also, from equation o, Combustion I mole of Benzene products 6 moles of loan so, 155 mole of Benzene produces 6x 155 x 44 g of la WS mo TAO 78 78 L since during combustion of Benzene along with heat ca (Carben déonide) gas is produced which ů a greenhouse gas and also trups the sun's heale and prevent its from escaping hereby increasing the surface temperature and causes global warming A