Combustion of hydrocarbons such as heptane (C,H,6) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. | 1. Write a balanced chemical equation, including physical state symbols, for the combustion of liquid heptane into gaseous carbon dioxide and gaseous water. x10 2. Suppose 0.480 kg of heptane are burned in air at a pressure of exactly 1 atm and a temperature of 15.0 °C. Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits.
Combustion of hydrocarbons such as heptane (C,H,6) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. | 1. Write a balanced chemical equation, including physical state symbols, for the combustion of liquid heptane into gaseous carbon dioxide and gaseous water. x10 2. Suppose 0.480 kg of heptane are burned in air at a pressure of exactly 1 atm and a temperature of 15.0 °C. Calculate the volume of carbon dioxide gas that is produced. Be sure your answer has the correct number of significant digits.
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Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Transcribed Image Text:Combustion of hydrocarbons such as heptane (C,H,6) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the
Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great
deal of international discussion about whether to regulate the production of carbon dioxide.
1. Write a balanced chemical equation, including physical state symbols, for the
combustion of liquid heptane into gaseous carbon dioxide and gaseous water.
x10
2. Suppose 0.480 kg of heptane are burned in air at a pre
of exactly 1 atm and
a temperature of 15.0 °C. Calculate the volume of carbon dioxide gas that is produced.
Be sure your answer has the correct number of significant digits.
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