`Br H2O он HBr

Q: for the first reaction shown from the remaining reactions. AH rXn Calculate AHD, N204 (g) - 2NO (g)…

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Q: Find ΔS° for the formation of CH3OH(l) from its elements.

A: The measure of disorder and randomness of the system is defined as Entropy. All the molecular motion…

Q: Given the reactions, X(s)+12O2(g)⟶XO(s) Δ?=−635.1 kJ XCO3(s)⟶XO(s)+CO2(g)…

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

Q: For the reaction Na₂CO3 + 2HCl-NaCl + CO₂ + H₂O ΔH is -144.1 kJ. What is ΔU

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Q: What is ∆G° for the reaction CaO(s) + CO₂(g) → CaCO₃(s)?

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Q: For this reaction: 2SO2 + O2 --> 2SO3 delta H = -296 kJ How many kJ of energy are released from the…

A: Mass of SO3 formed=64.42gGiven balanced equation:2SO2 +O2 →2SO3             ∆H=-296KJFrom  reaction…

Q: 4B(s) + 3O2(g) → 2B2O3(s)    ∆HO= -2543.8 kJ   Calculate the ∆HO for the decomposition of B2H6…

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Q: For a reaction with ΔH° = 40 kJ/mol, decide which of the following statements is (are) true. Correct…

A: Reactions are usually either endothermic or exothermic nature. They require heat for performing…

Q: 2 A2B (Green) + 3 C2 = 2 A2Ć (yellow) + 2 BC2 AH = -288 kJ A.The reaction will shift to the left in…

A: We have given that  2A2B(green)  + 3C2 <----> 2A2C (yellow )  + 2 BC2  and given that…

Q: What is the effect of an exothermic reaction to the surroundings? Become acidic Decrease temperature…

A: ->An exothermic process release heat ,causing the temperature of the immediate surroundings to…

Q: O FeO(s) + CO(g) → Fe(s) + CO2(g)

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Q: When enthalpy of reactants is higher than products, then the reaction will be Exothermic none…

A: Endothermic reactions are those reactions in which heat is absorbed to carry out the chemical…

Q: The equation for the standard enthalpy of formation of potassium bromate, KBrO3, corresponds to…

A: The enthalpy required for formation of 1 mole of a compound from its reactants is called enthalpy of…

Q: Which of the reactions are exothermic? 2 Mg(s) + O,(g) → 2 MgO(s) + heat NH, (g) + HCI(g) → NH,CI(s)…

A: If heat is produced as one of product then the reaction is exothermic. If heat is used as reactant…

Q: The addition of HBr to CH2=CH2, an exothermic reaction. Define this ?

A: A reaction is said to be exothermic when the energy is released in the reaction due to which change…

Q: Which of these are TRUE for ENDOTHERMIC reactions? 1. The temperature of the surroundings is…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: the enthalpy of neutralization for the reaction of a strong acid with a strong base is -56 kj/mol.…

A: Given : Concentration of strong acid HCl = 0.4 M Volume of HCl solution = 244.6 mL = 0.2446 L…

Q: What is true about the effect of increasing temperature on the following reaction? 4 FeS(s) + 7 O2(g…

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Q: 19. The reaction 4Al(s) + 302(g) → 2AI2O3(s) AH° = -3351 kJ is and therefore heat is by the…

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Q: Which reactions are exothermic?   Reaction 1: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(l) + 2220 kJ…

A: The reactions in which heat is evolved in products are known as exothermic reaction. Again the…

Q: Which of the following reactions notate the formation reaction of CO(g)? a. C(s) + O(g) → CO(g) b.…

A: The formation reaction is the reaction between the elements in the compound. Formation reactions…

Q: Given the reaction NaOH(aq) + HCl(aq) -> NaCl(aq) + H2O(l), find the enthalpy of reaction. NaOH:…

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Q: Define the concept of Energy Diagrams? how readily a reaction proceeds, how many steps are involved…

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Q: In an exothermic reaction AH positive. negative.

A: In an exothermic reaction ∆H will be positive or negative has to be given.

Q: Which of the reactions are exothermic? 2 Mg(s) + 0,(g) → 2 MgO(s)+heat O NH, (g)+HCl(g) →…

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Q: How to determine if the reaction moves to the right or left (toward products or reactants) just by…

A: N2O4 (g) <=> 2NO2 (g) The number of moles of products is greater than the reactants,…

Q: Calculate G0 for the reaction  Al3+ + 3Fe2+  ⇄  Al0+ + 3Fe3+

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Q: For which of the following reactions is ΔSo a positive value?

A: Entropy (S) is a measure of the probability and disorder of a system or measure of the degree of…

Q: Which of the reactions are exothermic? 2 Mg(s)+O,(g) 2 MgO(s) + heat NH3 (g) + HC1(g) NH,C1(s) +…

A: Exothermic is the process or reaction that releases energy in the form of heat. Another way of…

Q: ΔH for the formation

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Q: 1. Write the formation reactions for the following substances: solid aluminum chloride, AH. f =…

A: The quantity of energy liberated or absorbed in a chemical reaction that leads to the formation of…

Q: 1) Under constant pressure conditions, the enthalpy of a reaction is equal to: a) -pAV b) qp с) q d)…

A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…

Q: If a reaction is exothermic, then O AS° > 0 O AH° 0

A: An exothermic reaction is a reaction in which heat is released. The products will be more stable…

Q: Which reactions are exothermic?   Reaction 1: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(l) + 2220 kJ…

A: in any reaction  in which energy is released is said to be exothermic reaction.

Q: For the reactions, Sn (s) + Cl2(g) → SnCl2s) +84 kcal SnCl2(s) + Cl2(g) → SnCls) +47 kcal Find the…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: 2Fe,0, + 3C + HEAT- 4Fe + 3CO, Explain why this is an example of an Endothermic reaction.

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

Q: potential energy diagrams for the following reactions:    2 Ag (s) + Cl2 (g) = 2 AgCl(s) +254 kj

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Q: Determine ∆G° for the reaction 2 NO₂(g) → 2 NO(g) + O₂(g) at 25°C.

A: Chemical reaction is :- 2NO2 ------> 2NO + O2 ∆G°fNO2 = 51.3 kJ/mol ∆G°fNO = 86.6 kJ/mol

Q: For the reaction : Al(s) / Al+°(aq) // Mg+2(aq) / Mg(s) the amount of electrical energy is O -1,900…

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Q: Question is attached

A: When a reaction proceeds, the reactants convert to products. The amounts of reactants decrease with…

Q: Question attached

A: Energy change for a nuclear reaction can be calculated by the mass change during the reaction. If…

Q: You may want to reference (Pages 271 - 272) Section 6.7 while completing this problem. The addition…

A: Now the given data is :        50ml of 5×10-2M AgNO3        50ml of 5×10-2M HI…

Q: D. H20 (s) –> H2O (I) AHo = 6.01KJ/mol| 1. This reaction depicts the 2. Is this reaction endothermic…

A: GivenH2O (s) → H2O (l)∆H∘ = 6.01 kJ/mol

Q: Which of the reactions are exothermic? 2 Mg(s) + O,(g) → 2 MgO(s) + heat O NH, (g) + HCI(g) →…

A: The reaction that releases heat during the reaction,  is called exothermic reaction.

Q: Find ΔS° for the formation of CH₃OH(l) from its elements

A: The formation of CH3OH (I) in its element is

Q: For this reaction: C4H10 ( l ) +13/2 O2 ( g ) ⟶ 4CO2( g ) + 5H2O ( g ) Δ H r x n = − 2658 kJ /mol…

A: The difference between the enthalpy of the products and the reactants is known as enthalpy of the…

Q: What is the value of the enthalpy change per mole of HCI(g) produced? O 242 kJ O -93 kJ O -121 kJ O…

A: The given reaction is: The steps are:

Q: Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions. NaOH(s) →…

A: Given reaction: NaOH (s)  ---> Na+ (aq)  +  OH- (aq)  + x1KJ

Q: 3Al(s)+3NH4ClO4(s)→Al2O3(s)+AlCl3(s)+3NO(g)+6H2O(g) Calculate ΔH° for this reaction. Substance and…

A: Delta Ho rxn = Delta Ho products- Delta Ho reactants

Q: exothermic Is this reaction exothermic, endothermic, or neither? endothermic neither If you said the…

A: a) Now, after the combustion of acetaldehyde in bomb calorimeter, the temperature of water rises…

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.