An reaction results when the energy released by the formation of products is greater than the energy required to break the bonds in the reactants. O endergonic O endothermic O exothermic

Q: 2Al(s) + 302(g) ---> 2Al203(s) ΔHo = -3351 kJ The reaction shown above is…

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Q: Which sample will reach the lowest final temperature when all samples evolve 12.5 J of heat and all…

A: Since, Q =m.c.St WHERE Q = heat energy M =mass of metal C= specific heat of metal Triangle T =…

Q: Which of the following statement(s) describe(s) an endothermic reaction? Check all that apply.…

A: Endothermic reaction: The reaction in which heat is absorbed is called endothermic…

Q: If you have 6.0 moles of ammonia, how much energy in kJ released in the chemical reaction? N2 (g) +…

A: Answer is A) -280 kJ

Q: What does it mean if the AH value for a chemical reaction is positive? O a. kinetic energy is…

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Q: A_ AH corresponds to an, process. O positive, exothermic zero, exothermic positive, endothermic O…

A: Change in enthalpy of the process which is also called heat of process is denoted by ∆H. For…

Q: Choose the endothermic process  butter turning rancid, photosynthesis of carbohydrates by plants,…

A: Endothermic processes are those in which heat is absorbed in the reaction whereas in exothermic…

Q: In an exothermic reaction, will raising the temperature tend to favor the products or the reactants?…

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Q: A reaction known to be endothermic was performed in a beaker. Which observation would best support…

A: Given, A reaction known to be endothermic was performed in a beaker the best observation for this…

Q: All reactions are endothermic. O True O False

A: All reaction are endothermic, this statement is totally false.

Q: Given the following potential energy graph, identify the correct statement. Energy CO + 2 H2 AH =…

A: Potential energy digram represent the graph of change in potential energy of reactant converted into…

Q: The temperature of the surrounding increases during a chemical reaction. Was the reaction endo- or…

A: The chemical reactions which are accompanied by the absorption of heat are known as endothermic…

Q: What is the following diagram representing? Energy of products Activation energy Heat of Energy of…

A: When the value of enthalpy is negative; means the process is exothermic and heat is released through…

Q: Which of the following statements is/are true about an exothermic reaction? Choose all the apply…

A: Answer:In a chemical reaction, when heat gets evolved then such reactions are called as exothermic…

Q: Which of the following statements is correct if a reaction is carried out at constant pressure? O…

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Q: For the following reaction, is the exothermic or endothermic, and does this reaction absorb or…

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Q: Certain chemical reactions are endothermic while others are exothermic. In each of the following…

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Q: Which statement is true when delta H is negative: 1. The reactants have more energy than the…

A: ∆H =-ve (negative) Energy is neither destroyed nor created it convert from one form to other form.…

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.