One mole of nitrogen gas confined within a cylinder by apiston is heated from 0C to 819C at 1.00 atm.(a) Calculate the work of expansion of the gas in joules (1 J 9.87x10-3atmL). Assume all the energy is used to do work.(b) What would be the temperature change if the gas were heatedwith the same amount of energy in a container of fixed volume?(Assume the specific heat capacity of N₂ is 1.00 J/gK.)
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.
One mole of nitrogen gas confined within a cylinder by apiston is heated from 0C to 819C at 1.00 atm.(a) Calculate the work of expansion of the gas in joules (1 J 9.87x10-3atmL). Assume all the energy is used to do work.(b) What would be the temperature change if the gas were heatedwith the same amount of energy in a container of fixed volume?(Assume the specific heat capacity of N₂ is 1.00 J/gK.)
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