24. A 500-cm^3 sample of1.0 M NaOH(aq)is added to 500cm3 of 1.0M HCl(aq)in a Styrofoam cup, and the solution is quickly stirred. The rise in temperature (AT1) is measured. The experiment is repeated using 100cm^3 of each solution, and the rise in temperature (AT2) is measured. What conclusion can you draw about AT1 and AT2? HCl(aq)+NaOH(aq) H2O(1)+NaCL(aq);AH∞0=-55.8KJ a. AT1 is five times as large as AT2 b. AT1 is less than AT2 c. AT2 is greater than AT1 d. AT2 is equal to AT1 e. AT2 is five times as large as AT1
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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