What is the change in enthalpy in kilojoules when 3.24 g of CH.OH gas is completely reacted according to the following reaction? 2 CH.OH(g) 2 CH-(g) + O(g) AH = 252.8 kJ

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Q: Enthalpy changes depend on the temperature and pressure under which a process occurs. However, the…

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Q: Which chemical change listed below represents a decrease in entropy?   Choices: a. N2(g) + 3H2(g) ®…

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Q: Physics (a) Draw monomer chemical structure of Teflon (b) Choose type of suitable polymerisation…

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Q: HyOH* OH A 2. B OH D

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A: Anytype of concentration can be given. Here, we can take molarity as the concentration term.

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Q: A____________________ AH corresponds to an O positive, exothermic O zero, endothermic O zero,…

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Q: In an experiment, 0.500 mol of Fe(NO3)3 is dissolved in water to produce an 2.00 L solution. The…

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Q: 6. Draw the expected major product for each of the following reactions. HCI ? ? HBr ROOR

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Q: What salt will be formed from the following acid base reaction? HNO2 + KOH

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Q: Question 14 Which is the correct equilibrium constant expression for the following reaction? Fe2O3…

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Q: For Cu(OH)2, Ksp = 1.6 x 10-1⁹. What is the molar solubility of Cu(OH)2?? 5.1 x 10-10 M 3.4 x 10-7 M

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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.