Use the following PE diagram to answer the following questio PE (kJ) 100 80 60 40 20 A + B C + D Progress of the reaction Is the reaction exothermic or endothermic? Exothermic Endothermic You need more information.

Q: When the reaction shown below is performed using: A + B --> C + D The temperature changes from 25.0…

A: Certain reactions requires heat for the reaction to be carried out, in other types of reaction heat…

Q: Ozone (O3) in the atmosphere can react with nitric oxide (NO): 03 (g) + NO (g) → NO2(g) + 02(g) What…

A: Given: H = -199 kJ/mol S = -4.1 J/K mol T = 25oC

Q: When the reddish-brown mercury(II) oxide (HgO) is heated, it decomposes to its elements, liquid…

A: Mass stoichiometry will tell us about the amount of reactants and products produced during the…

Q: Conside'pothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some unknown…

A: Answer: Energy diagram of the reaction is given to us and we have to find out the value of heat of…

Q: N2(g) + O2(g) + energy2NO(g) Identify each of the following as a product or a reactant: O2(g)…

A: Given reaction : N2 (g) + O2 (g) + energy → 2NO (g)

Q: Use the information for the reaction given below to answer the following questions. CH4 (g) + 2H₂O…

A: Decrease in pressure will not have any effect on Kc. In crease in pressure shifts the equilibrium in…

Q: Which of the following is a formation reaction? Xe(g) + 2 F₂(g) XeF4(s) H₂O(l) H₂O(s) CO(g) + 2…

A: Answer: Formation reaction is a type of reaction in which constituent elements are in their standard…

Q: How many calories were absorbed by a reaction if the change in temperature of a 55 g solution was…

A: Given, mass of substance =55 g change in temperature =-5.6°C Specific heat capacity = 1.0 calg°C

Q: Payal

A: The objective of this question is to calculate the heat of reaction, qrxn, for the given chemical…

Q: At a certain temperature, the following reactions have the constant shown:   N2 (g)  + 2O2(g) --->…

A: For the given reactions the Kc can be calculated as: (a) 2NO2(g)→N2(g)+2O2(g) As per the given…

Q: Is the following reaction exothermic or endothermic? Choose the correct answer and reasoning. 2 SO3…

A: Ans b ,endothermic  ,because energy was added to the reaction as a reactant . In endothemic…

Q: A chemical pack contains a small pouch of water surrounded by an ionic compound. To activate the…

A: In this case, temperature of the system is increased. i.e heat is evolved in the reaction.    We…

Q: Describe the difference in a potential energy diagram for an exothermic and endothermic reaction.…

A: Ans Exothermic reaction : Reaction in which energy released from system to surrounding is called…

Q: Is a combustion of ethanol : C2H5OH(g)+3O2(g)?2CO2(g)+3H2O(g) exothermic reaction or a endothermic…

A: Exothermic reactions : The reactions in which the energy of the products is less than the energy of…

Q: Calorimetry Example: Understanding AHn rxn If 100.0 mL 1.00 M HCI and 100.0 mL 1.00 M NAOH mixed:…

A: Suppose in the case of HCl we use H2SO4 as an acid. Then the reaction with NaOH would be: H2SO4 aq +…

Q: A 2.5 g sample of french fries is placed in a calorimeter with 500.0 g of water at an initial…

A: This problem is based on calorimeter where we need to find out Caloric value of the French…

Q: When NO(g) reacts with O₂(g) according to the following reaction, 13.93 kcal of energy are evolved…

A:

Q: Cl2 (g) + H2 (g) → 2 HCl (g) ΔH0rxn = ‒184.6 kJ 6. The reaction is ___________ as it _____________…

A: Given:

Q: Consider a hypothetical chemical reaction: A+B → C+D (In this equation A, B, C and D stand for some…

A: The reaction in which heat is released is known as exothermic reaction whereas the reaction in which…

Q: 18. Answer the following questions using the given equation and AH. (d) Adding so 6 CO2(g) + 6 H20…

A: The given reaction is, Heat of reaction (∆H) is also called as enthalpy of reaction. ∆H is the…

Q: convert 123 J to calories 515 cal 34.2 cal 443 cal 29.4 cal

A: Given  123 J

Q: HCl + NaOH --> H2O + NaCl how many grams of water were produced if the reaction above took place in…

A: The balanced reaction given is, => NaOH + HCl → NaCl + H2O                    ΔH = -58 KJ/mol =…

Q: Using the reaction given below, how much energy is produced during the reaction of 72.5 g Cl₂ and…

A:

Q: Use the diagram below to answer the following questions: a) Which letter represents the Ea of the…

A: Activation energy is the minimum amount of energy required for a reaction to occur

Q: which of the following processes is endothermic? propane burns in a gas gril water evaporates from…

A: The energy difference of the products and reactants is known as the energy change of a reaction. If…

Q: Is the following PE diagram representing an endothermic or exothermic reaction? PE (kJ) 250 200 150…

A:

Q: How many kilojoules are absorbed when 281 gg of PCl5PCl5 reacts? PCl5(g)→PCl3(g)+Cl2(g)ΔH=+67kJ

A: Phosphorus pentachloride decomposes into phosphorus trichloride and chlorine. The equation for the…

Q: Both animals and plants rely on stored energy for survivalAnimals can store energy in the form of…

A: a. b. The above reaction is a combustion reaction.  In this reaction, high temperature is…

Q: Anna was asked to identify and explain if the equation CO2 (1)-CO2 (g) was an endothermic or…

A: Here in the given reaction, i.e. CO2(l)→CO2(g) The interpretation done by Anna is : The reaction is…

Q: EtO 1. NaOEt, EtOH 2. CH3CH₂1 OEt H30+, Heat

A:

Q: When monitoring a reaction, the initial temperature of the reaction is 29 °C, it rose to 57 °C and…

A:

Q: An endothermic reaction with a low EA. An exothermic reaction with a high EA.

A: The minimum amount of energy required by the reactant molecules to convert into the products is…

Q: 3. Label each of the formulas shown in the following reactions as hydrates or anhydrates: heat a.…

A: Hydrates are ionic compounds containing free water molecules while anhydrates are compounds that do…

Q: create a poem about endothermic and exothermic reactions with 4 paragraphs and 4 stanzas

A: The reaction in which the system absorbs heat from the surroundings is known as an endothermic…

Q: Part 2 The Haber process produces ammonia (NH3) for the chemical industry from nitrogen (N₂) and…

A: To solve Part 2 and 3.   The dynamic nature of chemical equilibrium was demonstrated in the…