4NH3(g) + O2(g) → 2N2(g) + 6H2O(g)          ΔrH = -1267 kJmol-1  2NO(g) + O­2(g) → 2NO2(g)     ΔrH = -114 kJmol-1  N2(g) + 2O­2(g)  → 2NO2(g)     ΔrH = 66.4 kJmol-1 2CH4(g) → C2H6(g) + H2(g)     ΔrH = 64.6 kJmol-1 2KClO3(s) → 2KCl(s) + 3O2(g)     ΔrH = -77.6 kJmol-1 which of these are spontaneous at all temps

Q: 2 B (s) + 3 H2 (g) → B2H6 (g) ΔrHº = ??? Use the following information to solve for the enthalpy of…

A: Given, a) 4B (s) + 3 O2 (g) → 2 B2O3 (g) ΔrHº = -2544 kJ/mol b) H2 (g) + 1/2 O2 (g) → H2O (g) ΔrHº =…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6 HCI(aq) → 2 MCI, (aq) + 3…

A: Hess's law states the enthalpy change for the overall reaction is the sum of the enthalpies of…

Q: 23. Use the following information to determine the enthalpy for the reaction shown below. CS2(1) +…

A: C(graphite) + 2S(s) → CS2(l)                        Formation of CS2(l)= ∆H∘(CS2)= 87.9 kJ    CS2(l)…

Q: Calcium carbide, CaC2, is manufactured by the reaction of Cao with carbon at a high temperature.…

A: The question is based on the concept of chemical thermodynamics. We have  to identify the type of…

Q: The enthalpy changes for two reactions are given. Br2 (l) + F2 (g) → 2BrF (g)         ΔH = x kJ Br2…

A: The enthalpy changes of the two reactions are as follows: Br2(l) + F2(g) → 2BrF(g)…

Q: Which of the following equations is an exothermic reaction?   a H2 (g) + ½ O2 (g) → H2O (l) ΔH =…

A: Exothermic reaction Reaction in which Energy is released so it is exothermic reaction.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.73 kg sample…

A: Heat capacity is defined as the amount of heat required to change the temperature of the substance…

Q: emist carefully measures the amount of heat needed to raise the temperature of a 360.0 g sample of a…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: Given the following reactions Reactions Na(s) + Cl₂(g) → Na(g) + Cl(g) 2 Na(g) + Cl(g) → Na*(g) + Cl…

A: Answer:Extensive properties are the properties that depend on the size of the system. Enthalpy…

Q: Given the standard enthalpy changes for the following two reactions: ΔΗ° -- 544.0 kJ (1) 2Fe(s) +…

A:

Q: Consider the following reactions:                  C2H6 (g)  +  7/2 O2 (g)  →  2 CO2 (g)  +  3 H2O…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g) → 2PbO(s)…

A:

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Given: (1) N2(g) + O2(g) → 2NO(g); ΔHrxn = -43.1 kcal mol-1  (2) N2(g) + 3H2(g) → 2NH3(g); ΔHrxn =…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)

A: Let us denote the given reactions by reaction 1,2,3, and 4 from up to down respectively. Now we have…

Q: Based on the data below, what is the reaction enthalpy for the formation of anhydrous aluminum…

A:

Q: Use Hess's Law to calculate the enthalpy change for the reaction WO3(s) + 3H2(g) → W(s) + 3H2O(g)…

A: The enthalpy of the first reaction is -1685.4 kJ. The enthalpy of second reaction is -477.84 kJ.

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Data given: N2 (g) + O2 (g) → 2NO(g), ∆Hr×n = -43.1 kcal mol–1 ------------ (1)  N2 (g) + 3H2 (g) →…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Required equation: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) N2(g) + O2(g) → 2NO(g) ΔHrxn = -43.1 kcal…

Q: 2CH3OH(g)→2CH4(g)+O2(g),ΔH=+252.8 kJ   For a given sample of CH3OH, the enthalpy change during the…

A: Given,For a sample of CH3OH, the enthalpy change during the reaction is 82.9 kJ.

Q: Given the following data: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) ΔΗ -23 kJ 3FE2O3(s) + CO(g) →…

A:

Q: Using the information provided, determine the enthalpy (in kJ/mol) for the reaction 2 NH₃ (g) + 3…

A: The enthalpy of a reaction is the enthalpy change between products of the reaction and the reactants…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Hess's law states that the enthalpy change for an overall reaction is the sum of enthalpy changes of…

Q: Consider the reaction of sodium metal and water. 2Na(s) + 2H20(1) → 2NaOH(aq) + H2 (g) AH = -369 kJ…

A: 2Na(s)+2H2O(l) --->2NaOH(aq)+H2(g) ∆H = -369KJ On reversing the direction of reaction, sign of…

Q: The following reaction is endothermic. KCIO4(s) K(s) + 1/2 Cl₂(g) + 2 0₂(g) AH(1) = 433 kJ Calculate…

A: Recall the given reaction,                         KClO4 s  →  K s  +  1/2 Cl2 g  +  2 O2 gThis is…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Change in enthalpy : ΔH = + 66.4 kJ                                      ΔH = + 66400 J Change in…

Q: Given these reactions, where X represents a generic metal or metalloid 1) H, (g) + 0,(g) → H,O(g)…

A: Given,

Q: Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HC1(aq) 2 MCI, (aq) + 3…

A:

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: The given data is as follows: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)          ∆Hr=? N2(g) + O2(g) →…

Q: Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HCl(aq) 2 MCl, (aq) + 3…

A: By using the few reactions we can calculate the enthalpy of a particular reaction .

Q: Consider these reactions, where M represents a generic metal. 1. 2 M'S) + 6 HCI(аq) — 2MСI, (aq) + З…

A: 2M(s) + 6 HCl (aq) →2 MCl3 (aq) + 3H2   ∆H1 =-789KJ HCl (g) →HCl ∆H2 = -74.8 kJ H2 (g) + Cl2 (g) →2…

Q: Determine the enthalpy of reaction for 2CH4(g) → C2H«(g) + 2H2(g) using the equations: 2C2H6(g) +…

A:

Q: Which of the following equations is a mathematical definition of enthalpy? O AH = AS - TAG Ο…

A: Enthalpy change is the amount of heat evolved or absorbed in a chemical reaction carried out at…

Q: Given the following thermochemical equations, C2 (g) +5/2O2 (g) → 2CO2 (g) +H2O (l) ΔH = −1299.5kJ…

A: Given: C2H2(g)+52O2(g)→2CO2(g)+H2O(l)     ∆H=-1299.5 kJ---eqn(1)C(s)+O2(g)→CO2(g)…

Q: What is the enthalpy change for the first reaction? CH4(g) + 1/2O2(g) → CH3OH(g) ΔH =

A:

Q: Given the following two equations and their respective enthalpies: S (s) + O2(g) → SO2(g) AH =…

A:

Q: 1/2 O2(g) + H2(g) → H2O(l)                  ΔHrxn = ?

A: The change in enthalpy of a reactions is determined by the below formula.

Q: 2 H,S (g) +3 0, (g) → 2 H,0 (1) + 2 SO, (g) Exothermic or endothermic

A: Hydrogen sulfide reacts with oxygen to form water and sulfur dioxide. The equation for the balanced…