25. The kinetic molecular theory says that collisions between particles are elastic, but real-world collisions do not follow this assumption. What is some of the kinetic energy changed into after a collision? heat O light O potential energy O chemical energy O O

Q: The following curves show how the kinetic energy is distributed among the molecules of a sample of a…

A:

Q: Choose the best estimate for the activation energy required for the reaction to occur. 200 J 450 J…

A: Activation energy is the minimum amount of energy required for a chemical reaction to occur. In…

Q: The concentrations of three gaseous chemicals are measured over time (see figure, below). Choose two…

A: We are given the concentration(mol/L) versus Elapsed time(s) graph for a chemical reaction involving…

Q: Identify each of the changes as either path dependent or path independent. Path dependent Path…

A: The heat and work changes are path dependent. Volume and internal energy changes are path…

Q: Which of the following molecular properties increases as temperature increases? kinetic energy…

A: Which of the following molecular properties increases as temperature increases? kinetic energy…

Q: The activation energy =   The energy of the reactants =    The energy of the products =    The…

A: Activation energy (Ea) :-  The minimum amount of energy that must be possessed by reactant molecules…

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: Although matter is conserved during chemical reactions, does all the reactions get converted into…

A: By understanding the factors that affect the extent of reaction, it is possible to design reactions…

Q: 6. Boiling water on the stove for cooking can be classified as a(n) process. endothermic exothermic…

A: 1.Exothermic reaction   is reaction in  which heat is released . 2. Endothermic  reaction  heat is…

Q: 7. What does the variable 'R' represent in regards to gas laws? Ideal gas constant O Reaction rate…

A: R represents Ideal Gas Constant in Gas laws.

Q: At a lower temperature the kinetic energy of the reactants of a chemical reaction is higher. True…

A: Given statement: At a lower temperature the kinetic energy of the reactants of a chemical reaction…

Q: Match the following vocabulary to its definition Kinetic Energy The energy of motion [ Choose ]…

A: 1) Kinetic energy is defined as the energy of motion. Kinetic energy is the property of a moving…

Q: Assuming constant pressure, rank these reactions from most energy released by the system to most…

A: The objective of the question is to rank the given reactions based on the amount of energy released…

Q: A catalyst is a substance that speeds up a chemical reaction but is unchanged at the end of the…

A: In a reaction, the reactant molecules combine/decompose to form new compound called as product. For…

Q: In an experiment, sulfuric acid reacted with different volumes of sodium thiosulfate in water. A…

A: Solution :      The rate of reaction depends on the concentration of the reactant. As the…

Q: Part A Platinum is used to catalyze the hydrogenation of ethylene: H₂(g) + CH₂CH₂(g)…

A: There are two types of catalysts to carry out a reaction. Homogeneous catalyst:-Homogeneous…

Q: 20. Dissolving the salt potassium nitrate in water is an endothermic reaction. What would be…

A: The dissolution of potassium nitrate salt in water is an endothermic reaction. As the potassium…

Q: What needs to happen for an effective c a. The molecules collide

A: For an effective collision molecules should have proper orientation and must have some required…

Q: Below is an energy diagram for a chemical reaction. What information about the reaction energy does…

A: Given:Energy diagram for a chemical reactionDetermine the information related to this graph.The…

Q: Which of the following will affect the amount of energy it takes to change the temperature of a…

A: Whenever a substance is heated its temperature is increased. The process of heating requires heat.

Q: You obtain the following calibration curve. Concentration versus Absorption of Iron 1.4 y = 211.86x…

A: Calibration curve is a general method to determine the concentration of unknown sample. It is…

Q: Interconvert heat change and substance quantities in chemical reactions

A: In chemical reactions, heat and substance quantities are closely related and are interconnected…

Q: Classify the following processes according to their rates as fast, slow or very slow A) the rising…

A: A) the rising of bread dough in a warm room : Slow process B)  the melting of butter put into a hot…

Q: An reaction results when the energy released by the formation of products is greater than the energy…

A: Fill in the blanks with suitable answer--

Q: According to the collision theory of kinetics, which statement best describes the rate of a chemical…

A: Collision theory of reaction rate: According to the collision theory of reaction rate, the randomly…

Q: Convert an energy of 526 cal to units of joules. 09890 Convert an energy of 225 cal to units of…

A: Given -> (2)-> 526 cal  (3)->  225 cal

Q: When an exothermic reaction is starting: a. The reacting materials will not change their energy…

A: An exothermic reaction is the one in which heat is released in the process of reaction. Endothermic…

Q: 18. In an experiment, the data below was collected for this reaction: A +B -C+D initial speed [A]…

A: Answer :-  rate=k[A]2[B]  The rate law for given reaction is , rate=k[A]2[B]…

Q: Which had the highest energy-the reactants the products or the activated complex?

A: Activated complex are highly unstable. In a reaction reactants pass through an activated complex…

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

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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.