Calculate ΔrH∘ (The standard enthalpy of formation of liquid ethanol is −277.6 kJmol−1, of gaseous carbon dioxide is −393.5 kJmol−1, and of gaseous water is −241.8 kJmol−1.) Express your answer in kilojoules per mol

Q: The reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in…

A: (a) From the given chemical equation,it is clear that enthalpy of reaction per mole of CaO is-350…

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Q: 1. Describe enthalpy with respect to free energy change.

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Q: Which of the following signs on q and w represent a system that is doing work on the surroundings,…

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Q: Carbon monoxide (CO) is a highly poisonous gas. Write the equation that represents the standard…

A: Given: C(graphite) + O2(g) → CO2(g) ΔH° = −394.0 kJ......(i)2 CO(g) + O2(g) → 2 CO2(g) ΔH° = −566.0…

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Q: Calculate the work done (in Joules) during the combustion of hydrazine, a component of rocket fuel,…

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Q: What are the signs of q and w if a system absorbs 180 J of heat while expanding (performing work on…

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Q: give 2 examples of enthalpy, entropy, and Gibbs free energy.

A: Examples of enthalpy, entropy, and Gibbs free energy are given below

Q: Given that: ΔHof [NO2(g)] = +34.0 kJ mol−1 ΔHof [NO(g)] = +90.0 kJ mol−1 What is the standard…

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Q: Consider the hypothetical case of removing the magnesium sulfate from solution and reforming the…

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Q: 3. The production of steel from iron involves the removal of many impurities in the iron ore. The…

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Q: Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: The first chemical equation is, N2g+3H2g→2NH3g       ∆H=-92 kJ......(1) The second chemical equation…

Q: Burning methane in oxygen can produce three different carbon-containing products: soot, carbon…

A: a). Reaction of methane gas with oxygen:The three balanced equations areMethane burns in oxygen to…

Q: Given the following reactions: N2(g) + 2 O2(g) → 2 NO2(g)                         ΔH = 66.36 kJ…

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

Q: The standard enthalpy change for the following reaction is -104 kJ at 298 K. 3 C(s,graphite) +4…

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Q: 2. The muscles in our bodies work similar to that of a fuel cell, by metabolizing sugar (glucose) to…

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Q: 9. A diamond weighing 310 mg requires 2.38 J to raise its temperature from 23.4°C to 38.7°C. A.…

A: Specific heat capacity of the elements are given by ratio of amount of heat absorbed to the mass of…

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Q: ing the decay of organic matter, which contains sulfur. The gas burns in oxygen as follows: 2H,S(g)…

A: Hess's law  states that the amount of heat evolved or absorbed in a process is independent of the…

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

A: We have to calculate the enthalpy change for given reaction.

Q: Given the equation for a hypothetical reaction, 5A + 3B > 7C + 3D, and the following standard…

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Q: Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: We have to calculate the net change in enthalpy for the formation of one mole of nitric acid.

Q: the standard enthalpy of combustion of ethane gas, C2H6(g), is -1559.7 kJ/mole at 298 K. given the…

A: Given that : The standard enthalpy of combustion of ethane gas, C2H6(g) = -1559.7 kJ/mol The…

Q: When 2.0 mole of ZnO(s) decomposes to Zn(s) and O2 (g), the Δ H = 696 kJ of heat energy. What does…

A: Reaction involved:-  2ZnO(s) = 2Zn(s) + O2 (g)  ∆H = 696 kJ

Q: 2. The industrial method currently used to produce butanol is the hydration of butene. C,Ha(g) +…

A: Given  4C(s)  +  4 H2(g)   →  C4H8(g)                                           ∆H = -7.1 KJ/mol…

Q: The standard enthalpy change for the following reaction is 925 kJ at 298 K. Mg(OH)2(s) → Mg(s) +…

A: We know that Enthalpy is a state function one that depends on only the Initial state of the system…

Q: 1. The combustion of a sample of aluminium produces 0.25 mol of aluminium oxide and releases 419 kJ…

A: The combustion reaction of aluminum is given by: Als + 34O2g  → 12Al2O3s The enthalpy 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: Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product…

A: Standard enthalpy change is calculated by looking at change in enthalpy of product and reactant

Q: Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product…

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Q: For the chemical reaction Ca (s) + ½ O, (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for…

A: The given reaction is, 2CaO(s) ---> 2Ca(s) + O2(g)   The chemical reaction given is,  1) Ca(s) +…

Q: The following two reduction reactions for aluminum oxide and iron (III) oxide can be combined to…

A: Answer :-  a) 2Al2O3(s) → 4Al(s) + 3O2(g)   ,  ∆H°rxn = 3352 (kJ)  b) 2Fe2O3(s) → 4Fe(s) + 3O2(g)…

Q: What are the assumptions that are made when performing calorimetry to determine molar enthalpies?…

A: Calorimeter :  A calorimeter is a insulated device used for heat measurements. It mainly consists of…

Q: Use the table below of enthalpies of formation to determine the heat of the following reaction.…

A: The details solution for this is provided below in attach image.

Q: The reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in…

A: The difference in the enthalpy in between the reacting species and the products is known as the…

Q: Meals-ready-to-eat (MREs) are military meals that can be heated on a flameless heater. The heat is…

A:

Q: Which of the following signs on q and w represent a system that is doing work on the surroundings,…

A: The answer is as follows:

Q: The decomposition of nitroglycerin (C3H5N3O9) produces carbon dioxide, nitrogen, water, and oxygen…

A: Given: mass of nitroglycerin = 1.00 g energy release = 6.23 kJ/kg molar mass of nitroglycerin =…

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)2NO2(g) AH° =…

A: The reactions given are 1) N2 (g) + 2 O2 (g) -----> 2 NO2 (g)…

Q: 10.0 mol CsH20, (glucose) is combusted to carbon dioxide and water at 25C according to the equation:…

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Q: When one mole of calcium carbonate reacts with ammonia, solid calcium cyanamide, CaCN2 and liquid…

A: The enthalpy of formation (ΔHf°) is the standard reaction enthalpy (ΔH°) for the production of the…

Q: Use standard enthalpies of formation in the table above to determine ΔHorxnΔHrxno for the reaction:…

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Q: to calculate the true enthalpies of these reactions by the Hess’ law, as: ΔH°(rxn) = Σ[ν ×…

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Q: Calculate the standard molar enthalpy for the complete combustion of liquid ethanol (C2H5OH) using…

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Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)N½O4(g) AH° =…

A: You have given a reaction that follows the Hess Law of enthalpy formation.

Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.75 kJ/°C. When…

A: Given:  Calorimeter constant(C)= 0.75 KJ/°C  Mass of sample(m) = 0.412 gm  Increase in temperature…