Liquid methanol (CH3OH) can be used as an alternative fuel in pickup and SUV engines. An industrial method for preparing it uses the catalytic hydrogenation of carbon monoxide: CO(g) + 2 H₂(g) catalyst CH₂OH (1) kJ How much heat (in ) is released when 15.0 L of CO at 85 °C and 112 kPa reacts with 13.0 L of H₂ at 75 °C and 744 torr? Be sure your answer has the mol correct number of significant figures. kJ mol Note: Reference the Fundamental constants, Conversion factors for non-SI units, and Thermodynamic properties of pure substances tables for additional information. 0 x10 X S
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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