For the forward reaction what is the enthalpy of the reaction?

Q: The value for ΔH H3O + OH is : - 55.65 Kj/mol   the moles of limiting reactant ( Hcl) : 0.075…

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Q: Is Enthalpy an extensive property? Explain?

A: An extensive property is one that depends on the amount of material present. Whereas an intensive…

Q: (b) Explain the following terms: (i) Internal energy of a system (ii) Bomb calorimeter

A: The following terms has to be explained i) Internal energy of a system ii) Bomb Calorimeter

Q: The heat of formation of Fe2O3(s) is -826.0 kJ/mol. Calculate the heat of the reaction 4Fe(s) +…

A: Given information,

Q: If a reaction receives heat from its environment, that reaction is.. and enthalpy change (AH) i.

A: an endothermic process is any process with an increase in enthalpy of the system in such a process a…

Q: Discuss how calorimetry can be used to measure ∆H for chemical reactions?

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: which of the ff will always result in an endothermic process a. work done on the system, heaet…

A: As the reaction is endothermic means enthalpy of the reaction is positive. Means by the reaction,…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 273. kJ during a…

A: Given :  1. Change in Enthalpy = + 273 kJ  2. Work done = 122 kJ .

Q: In the determination of heat of neutralization using a coffee-cup calorimeter, determine the effect…

A: A coffee cup calorimeter is well insulated so that it is able to prevent the loss of heat to the…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 225. kJ during a…

A: a.) To Calculate the change in energy of the gas mixture , we would use first law of thermodynamics.…

Q: 20.0mL of 0.15M NaOH was mixed with 30.0mL of .10M HCl inside a calorimeter. A. Is the reaction…

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Q: True or False? Because a state function depends on the current equilibrium of the system, a set of…

A: True.

Q: Briefly explain: - why is it necessary to revise the heat capacity of the calorimeter when a solid…

A: A question based on thermochemistry that is to be accomplished.

Q: If a reaction takes place in a water-based calorimeter and the temperature of the water increases,…

A: given  water bases calorimeter Temperature of water is increasing Nature of Reaction = To be…

Q: A chemical reaction shifts left upon heating. What does that tell you about the enthalpy of…

A: If reaction is endothermic heat is required to form product and reaction is written as Reactant +…

Q: For an exothermic reaction, how is the measured temperature change affected if some of the heat…

A: The amount of heat involved in a chemical of physical process is measured using the device called…

Q: What is the change in enthalpy (ΔH) for a chemical reaction?How is ΔH different from ΔE?

A: In thermodynamics various terms are used. Some of these terms are work, heat, change in enthalpy,…

Q: When 50.0 g of an aqueous solution of reagent 1 at 24.1oC is added to 100.0 g of of an aqueous…

A: Given : Mass of reagent 1 solution = 50.0 g Mass of reagent 2 solution = 100.0 g Initial temperature…

Q: Information gathered from the Calorimetry Experiment: Mass of tire wire = 5.0 g Mass of water…

A: GIven: Mass of tire wire,mT = 5.0 g Mass of water,mw=200.5 g Initial Temperature of Water,Tw= = 30oC…

Q: Draw an enthalpy diagram for a general exothermic reaction; label the axis, reactants, products, and…

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Q: When a student chemist transferred the metal to the calorimeter, some water splashed out of the…

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Q: Use the standard enthalpies of formation to determine the molar enthalpy of combustion for pentane.…

A: The standard enthalpy of combustion of a compound is the reaction of a compound in the presence of…

Q: Which of the following which is/are true about the internal energy, E?   (i) The total energy of…

A: Internal Energy is defined as energy dissociated with the random, disordered motion of Molecules.

Q: How are enthalpy of a reaction and temperature change related?

A: Relation of enthalpy of reaction and temperature change:

Q: To measure enthalpy of a reaction, we can use calorimetry under what condition? O constant…

A: In this question, we will see the condition for measuring enthalpy of a reaction by using…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 175. kJ during a…

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Q: Enthalpy of a reaction can be measure by Glass calorimeter

A: Ans. (i) Enthalpy of reaction can be measured by a calorimeter. There are several types of…

Q: Constants Periodic Table The heat capacity of an object indicates how much energy that object can…

A: Part B. When the amount of heat require to raise the temperature of one mole of a pure substance by…

Q: Explain how is enthalpy related to spontaneity of a reaction?

A: The Gibbs free energy is related with enthalpy and entropy. It is shown by the formula given below.

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 123. kJ during a…

A: Given: The enthalpy of the mixture i.e. system is decreasing by 123 KJ. And the work done on the…

Q: KJ/mol. The heat of reaction for the combustion of a mole of Ti in this calorimeter is

A: The ∆Hcombustion is the amount of heat in the energy needed to burn per mole of a substance. Its…

Q: Is the change in enthalpy for a reaction an extensive property?

A: The enthalpy of a system is the sum of internal energies of the system and its  additional pressure…

Q: Indicate whether each statement is true or false. (a) Unlike enthalpy, where we can only ever know…

A: Entropy: The measurement of the randomness of the arrangement of molecules or particles or the…

Q: the _____ of a reaction is the enthalpy change when all reactants and products are at 1 atm pressure…

A: Enthalpy H is the amount energy absorbed or released in a process.

Q: When measuring the enthalpy of combustion of a very small amount of material, would you prefer to…

A: The amount of heat that is absorbed by calorimeter is given as follows: Here, c is the heat…

Q: A calorimeter is used to measure the enthalpy of a reaction. Label the system and the surroundings.

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Q: The value of ΔH° for the reaction below is -72 kJ. Therefore, ________ kJ of heat are released when…

A: ΔH° < 0 => heat is releasing in the reaction. Since when 2 mol of HBr is forming, -72 KJ =…

Q: Question attached

A: Enthalpy of the reaction is the amount of heat released when 1 mole of the substance is reacted.

Q: Which of the following is a statement of Hess's law?     If a reaction is carried out in a series of…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat absorbed or evolved…

Q: Which of the following is a statement of Hess’s law? If a reaction is carried out in a series of…

A: Enthalpy of a system is defined as sum of internal energy and its additional pressure volume energy.…

Q: of enthalpy

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Q: For the highly exothermic reaction H2(g) + 1/2 O2(g) → H2O(g) qrx =DHrx = -242 kJ, What quantity of…

A: Given: no of moles of H2 =17.9molno of moles of O2 = 1.13 molThe reaction is:H2(g) + 1/2 O2(g) →…

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

A: Standard state :-  Standard state for elements or compounds is the reference state at which…

Q: When 0.5 mol of H2H2 is reacted with 0.5 mol of O2O2, 121 kJ of heat is released. Determine…

A: In the question, it is given that 0.5 mol of H2 react with 0.5mol of O2  i.e same ratio therefore…

Q: What is the change in enthalpy (∆H) for a chemical reaction?How is ∆H different from ∆E?

A: In thermodynamics various terms are used. Some of these terms are work, heat, change in enthalpy,…

Q: When the sign of an energy change is being determined, this would always be with respect to what?

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 160. kJ during a…

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Q: Consider the enthalpy diagram of an exothermic reaction. Where are the reactants in relation to the…

A: The diagramme is given below.

Q: 2NaCH3COO(s)+PbO(s)+energy→Pb(CH3COO)2(s)+Na2O(s) use the following to answer this question During…

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