Given the data in the table below, AH° ryn for the reaction 3NO2 (g) + H20 (1) → 2HNO3 (aq) + NO (g) kJ. is Substance AHf (kJ/mol) H20 (1) -286 NO (3) NO2 (g) HNO3 (aq) NH3 (g) 90 34 -207 -46 64 140 -140 -508 -64

Q: Consider the hypothetical thermochemical equation 3 A + B 2 C for which AH = 59.3 kJ/mol. What would…

A: The reaction 2 C -----> 3 A + B is just the reverse of 3 A + B ------> 2 C   So the ΔH for the…

Q: 3) C₂H₂(g) + 2 H₂(g) → C₂H6(g) (bon coinlatino Information about the substances involved in the…

A: Heat of formation is defined the enthalpy change when 1 mol of a compound is formed from its…

Q: 8. The value of ΔH0for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat…

A: The amount of energy liberated or absorbed in a chemical reaction is expressed by the change in…

Q: VI. VII. Use the standard reaction enthalpies given below to determine AH°rxn for the following…

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Q: f 112g of water at 54oC is mixed in a calorimeter with a 95g sample iron at 139oC, what is the final…

A: Given data: Mass of water(m1) = 112 gms       Its temperature(T1) = 54°C Mass of iron(m2) = 95 gms…

Q: Given the thermochemical expression below: CaO (s) + 3C (s) ----> CaC2 (s) + CO (g)…

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Q: A chemist measures the energy change ΔH during the following reaction:…

A: The reaction is, C3H8 + 5O2 -----> 3CO2 + 4H2O ∆H = -2220 kJ Since the change in enthalpy is…

Q: Calculate how much heat 32.0g of Iron (Fe) absorbs when it is heated from 25oC go 80oc. How many…

A: Heat is absorbed by a system to raise its temperature. During this process there can also be a…

Q: A 75.0 mL of 2.0 M HNO3 at 25.0 C is mixed with 75.0 mL of 2.0 M NaOH also at 25.0 C in a…

A: The balanced equation is   NaOH + HNO3 ------> >NaNO3 (aq) + H2O (l)Number of moles of NaOH =…

Q: 11. Given the thermochemical equations, calculate the heat of reaction at 298 K for the reaction of…

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Q: Q3. Solve any TWO (2) of the following numerical questions. i) Calculate the work associated with…

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Q: Draw a potential energy diagram to represent the following thermochemical equation. H₂O +285.8 kJ →…

A: Answer: Energy profile basically tells us about the energy path that a reaction follow to form the…

Q: The following thermochemical equation is for the reaction of Fe,0,(8) with hydrogen(g) to form…

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Q: The value of ΔH0for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat consumed…

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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: Consider the balanced reaction 5 A + 5 B –→ 2 C + 9 D and the enthalpies of formation provided in…

A: ∆Hreaction = ∑∆Hf(products) - ∑∆Hf(reactants)

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 126. kJ during a…

A: Solution                                          Given that  Enthalpy is decreased = 126 kj Work…

Q: What is the ΔHrxn for the following reaction (not balanced):   ___P4O10(s) + ___PCl5(g)…

A: Given the following balanced thermochemical equations: P4(s) + 6 Cl2(g) -> 4 PCl3(g)…

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: 3. Use Hess's Law and the given thermochemical equations to determine AH mn for the following…

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Q: A 1.211 g of benzoic acid (CH§ COOH) was ignited in pure oxygen gas and the heat released from the…

A: Here's a step-by-step explanation:1. **Understanding the System**: We have benzoic acid (C6H5COOH)…

Q: How are q and ΔHrxn different from ΔH°rxn, (remember the definitions and unit)?

A: q is the amount of heat transferred to a system whereas  is used to describe the change in enthalpy.…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 372. kJ during a…

A: The energy change of the given reaction is = 372. kJ The work done on the gas mixture is = -63. kJ…

Q: What does C represent in the change in heat formula? q= AH = mx C × AT O specific heat capacity O…

A: In given formula  C is specific  heat capacity.

Q: How much heat was absorbed by the solution?

A: For constant pressure calorimeter, we know that The heat absorbed by the calorimeter is given by…

Q: Consider the balanced reaction 2 A + 9 B -→ 6 C + 2 D and the enthalpies of formation provided in…

A: The given balanced reaction is, 2 A + 9 E  → 6 C + 2 D ΔHf (A) = -101.8 kJ/mol ΔHf (B) =  66 kJ/mol…

Q: 1. Consider the following thermochemical 2ZnS (s) + 302(g) → 2ZnO (s) + 2SO2(g) equation: AH° =…

A: The objective of the question is to calculate-The heat released when  reacts in excess oxygen.The…

Q: According to the following thermochemical equation, if 1.902 kg of NO2 is produced, how much heat is…

A: The thermochemical equation given as, => 2 NO (g) + O2 (g) ---> 2 NO2 (g)…

Q: Al203 (s) + 3 CO (g) → 2 Al (s) + 3 CO2 (g) AH = A. Calculate AHreaction for the reaction above…

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Q: The molar heat capacity at constant pressure for CO2 is 36.61 J mol-1 K-1. How much heat in J is to…

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Q: For the reaction: H₂ + S +20₂ H₂SO4 (1) AHR = -193,910 cal/mol Calculate AURⓇ

A: Given - H2 + S + 2O2 <-> H2SO4(I).           ∆HR°=-193,910cal/mol

Q: The overall reaction in a commercial heat pack can be repre- sented as 4Fe(s) + 30₂(g) 2Fe₂O3(s) AH…

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Q: For the following reaction: CS2(l) + 3 O2(g) →CO2(g) + 2 SO2(g) determine the constant pressure heat…

A: Given that - C(s) + O2(g) → CO2(g);  ΔHf1=-393.5 kJ/mol .........(1)   S(s) + O2(g) → SO2(g);…

Q: pt of The following thermochemical equation is for the reaction of hydrogen sulfide (g) with…

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Q: of enthalpy

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Q: Calculate q

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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: The AH;° for the reaction FeO() + CO(g)– Fe(s) + CO,(g) is -16.8 kJ. Use this data and the data in…

A: Standard enthalpy of reaction is the difference between standard enthalpies of formation of…

Q: A 148 g sample of an unknown metal at 74.0 oC is placed in a beaker containing 80.0 g of H2O at 25…

A: given values are - mass of water = 80.0 g  initial temperature of water = 25 oC  cH2O(l) = specific…

Q: or the reaction N2(g) + O2(g)  2 NO(g) G° = 172.1 kJ and S° = 24.9 J/K at 340 K and 1 atm. This…

A: Given : G° = 172.1 kJ  S°= 24.9 J/K at 340 K and 1 atm.

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 396. kJ during a…

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Q: (d) What is the sign of the standard reaction ENTROPY? Does the entropy provide a favorable or…

A: The equilibrium reaction given is, =>