Complete the table. Question Choices The value of ΔH0 for the reaction is -336 kJ. Determine the heat (kJ) released to the surroundings when 23.0 g of HCl is formed: CH4(g) + 3Cl2(g) → CHCl3(l) + 3 HCl(g) in kJ. 70.7 177 -336 211 Which one of the following is an endothermic process? water freezing hydrochloric acid and barium hydroxide are mixed at 25 degrees Celsius. mixing of HCl and NaOH at room temperature boiling soup
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.
Complete the table.
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The value of ΔH0 for the reaction is -336 kJ. Determine the heat (kJ) released to the surroundings when 23.0 g of HCl is formed: CH4(g) + 3Cl2(g) → CHCl3(l) + 3 HCl(g) in kJ.
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Which one of the following is an endothermic process?
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