Calculate AH for the reaction of sulfur dioxide with oxygen. 2SO2 (9) + 02 (g) → 2SO3 (g) (AHF° SO2 (9) = -296.8 kJ/mol; AHf ° sO3 (g) = -395.7 kJ/mol) Select one: O a. -98.9 kJ O b. -197.8 kJ O c. Not enough information is given. O d. 197.8 kJ

Q: please explain to understand the process!!! Given the following information: PCI3(1) + Cl2(g) →…

A: delta H is a extensive property....

Q: How much heat is liberated at constant pressure if 0.833 g of calcium carbonate reacts with 59.7 mL…

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Q: 1) Calculate the enthapy for the folowing reaction: Na(g) + 20(g) -> 2NO:(g) AH ??? kJ Using the…

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Q: what quantity of coal must be burned to supply 3.18*10^6 KJ, assuming that the only combustion…

A: Given: The heat released = 3.18 × 106 kJ Standard data:  The heat of combustion of solid carbon =…

Q: Calculate the enthlapy of reaction (ΔH) in kJ for the reaction: 2A + B → E       ΔH =? Given these…

A: The given reaction is, 2A + B → E          The reactions involved in the given reaction are, 1) A +…

Q: Given the following reactions: 2S (s) + 302 (g) 2S03 (g) AH = -790 kJ S (s) + O2 (g) → SO2 (g) AH =…

A: According to Hess's Law If the reaction is multiplied (or divided) by some factor, ∆H must also be…

Q: The reaction of hydrogen sulfide(g) with oxygen(g) to form water(g) and sulfur dioxide(g) proceeds…

A: Answer: In this question enthalpy of the given balanced reaction in which combustion of 2 mole H2S…

Q: 3 NaOH(aq) + H3PO4(aq) = Na3PO3(aq)+3H2O(l)          Change is H= -173.7kJ If 31.2 mL of 0.45 M…

A: Moles of sodium hydroxide taken = concentration of sodium hydroxide X volume of sodium hydroxide…

Q: 7. Electrolysis dissociates liquid water molecules into hydrogen and oxygen gas with the use of…

A: Electrolysis of water is a chemical reaction in which dissociation of water is carried out with the…

Q: 3. Calculate AH° for the reaction GeO(s) + ½ O2(g) → GeO2(s) given the following thermochemical…

A: the reaction is multiplied (or divided) by some factor, H must also be multiplied (or divided) by…

Q: Methane, CH4, reacts with oxygen to produce carbon dioxide, water, and heat. CH4(g) + 2O2(g) .…

A: From the above reaction we can see that when 1 mole of CH4 reacts, ΔH = -890.3 KJ Hence the ΔH of…

Q: The value of AH for the reaction below is +128.1 kl: CH;OH () CO (g) + 2 H2(g) [1. How many kJ of…

A: Total energy needed for completion of reaction is defined as enthalpy of reaction.

Q: What is the amount of heat released (in kJ) when 60.0 g of Fe is produced according to the following…

A: Correct answer is - 458 kJ. Molar mass of Fe = 55.845 g/mol By stoichiometry of reaction: Heat…

Q: Which one of the following statements is not true concerning the equation below? N2(g) + 3 H2(g) → 2…

A: Since, heat is released in this reaction so this is an exothermic reaction. And mol ratio of N2 and…

Q: Calculate "q" (in kJ) for the following reaction if 11.35 grams of SOo(g) reacted with excess…

A: We are to calculate "q" (in kJ) for the given reaction when 11.35 grams of SO2(g) reacted with…

Q: 4 NH3(g) + 5 O2{g) → 2 N2(g) + 6 H2O(1) AH° = kJ m the following enthalpy changes, calculate the…

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Q: 3 NaOH(aq) + H3PO4(aq) → Na3PO3(aq) + 3 H2O(l)           ΔH = -173.7 kJ If 31.2 mL of 0.45 M sodium…

A:

Q: 7. Determine AH° for the following reaction: 2S(s) + 302(g) ---> 2SO3(g) AH°=? Given: SO2{g) --->…

A: 7) Given, a) SO2(g) ➝ S(s) + O2(g)  ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g) ∆H° = -197.8 kJ…

Q: What is the quantity of heat evolved at constant pressure when 30.5 g H2O(l) is formed from the…

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Q: Calculate AH for the reaction: NO (g) + O (g) → NO2 (g) AH. = ? From given the following…

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Q: 9. Calculate AH for the reaction 4NH3 (g) + 502 (g) → 4NO (g) + 6H20 (g), from the following data.…

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Q: Calculate "q" (in kJ) for the following reaction if 11.35 grams of SO2(g) reacted with excess…

A: We have reaction of  11.35 g of SO2 with excess oxygen we have to calculate the q for this.

Q: How many grams of iron are formed when 2.28x10^3 kJ of heat evolves from the reaction?…

A: Given Reaction Fe2O3(s) +2 Al(s)  → Al2O3(s)   + 2 Fe(s)∆Hreaction  = -852 kJHeat evolves =- 2.28 *…

Q: When 36.1 g of NH3 (MM = 17.03 g/mol) decompose, 171 kJ of energy is absorbed. Calculate AHXN in kJ…

A: Given reaction: 2 NH3 (g) → N2 (g) + 3 H2 (g) Given, the molar mass of NH3 = 17.03 g/mol It is also…

Q: Which of the following statements is false concerning the reaction of hydrogen gas and oxygen gas…

A: The answer to this question is as follows---------- When a reaction is multiplied by x, the heat…

Q: Calcium hydroxide reacts with hydrochloric acid by the following equation: Ca(OH)2(aq) + 2HCI(aq) →…

A: The sign of the enthalpy of any reaction is changed if the reaction is reversed.  So if the forward…

Q: 4. How much heat is released when 29.5 grams of Cl2 (g) reacts with excess hydrogen? H2 (g) + Cl2…

A: Given, H2(g) + Cl2(g) ➝ 2HCl(g)  ∆H° = -186 kJ Note: negative sign indicate the release of energy as…

Q: Calculate the enthalpy change for the reaction:  3NO2(g) + H2O(ℓ) ---> 2HNO3(aq) + NO(g)   Given:…

A: The reactions given are, 1) 2 NO (g) + O2 (g) ------> 2 NO2…

Q: b) Calculate the enthalpy of formation of copper (II) sulphate from the following data: 2Cu(s) +…

A: 1) Cu(s) + O2(g) → 2CuO(s)   ∆H° =325 KJ ×122) 2S(s) + 3O2(g) → 2SO3(g)   ∆H° = -800 KJ ×123)…

Q: 3. Calculate the AH for the reaction NO(g) + O(g) NO2(g) given the following information: NO(g) +…

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Q: 2. Calculate the enthalpy for the following reaction: > 2NO2 (g) AH = ? kJ Nao) + 20zg) Using the…

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Q: 9. Calculate AH for the reaction 4NH3 (g) + 502 (g) → 4NO (g) + 6H20 (g), from the following data.…

A:

Q: Given the following reactions Fe203 (s) + 3CO (s) → 2Fe (s) + 3CO2 (g) AH=-28.0 kJ 3Fe (s) + 4CO2(s)…

A: If the reaction is multiplied by any coefficient then the enthalpy of that reaction will also be…

Q: Given the following data: 203(g) 302(g) O(g) 20(g) NO(g) + 0;(g) → NO,(g) + 0,(g) AH=-427 kJ AH=…

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Q: 2. Calculate AH for the reaction 4NH; (g) + 50, (g) → 4NO (g) + 6H,0 (g), from the following data.…

A: Hess's law of heat summation states that when a reaction takes place by more than one step, the…

Q: The value of AH° for the reaction below is -186 kJ. Calculate the heat (kJ) released from the…

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Q: Use the following information to determine the enthalpy for the reaction shown be CHĄ(g) + H2O(g) →…

A: We have to find enthalpy of reaction.

Q: The burning of 48.7 g of ZnS in the presence of oxygen gives 220.0 kJ of heat.  What is ΔH for the…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: 2. Calculate AH for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g)+6 H2O (g), from the following data…

A: As already mentioned that need help in question number-2 so am going to do question-2…

Q: 15. See image below: * 15. Given the enthalpy changes for the following reactions, calculate AH, for…

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Q: Using the following balanced equation: G2 (g) + 6R (s) 2GR3 (s) AH = -325.0 kJ Atomic masses: • G:…

A: Balanced chemical equation is as follows: G2 (g)+ 6 R (S) →2 GR3 (S);△H=-325 KJ Molar mass of R = 25…

Q: Determine ΔH for the third reaction from the information given.   C3H8(g) + 3 H2O(g) ↔ 3 CO(g) + 7…

A: Calculating ∆H for the given reaction by multiplying second reaction by 3 and adding to reaction 1.

Q: 1. How many kJ of energy are released by 34.65 g of boron? Ti + 2 B -> TiB2  △ H  = 316 kJ/mol

A: Boron reacts with titanium to form titanium boride. The equation for the balanced chemical reaction…

Q: 18. The equation for the thermite reaction is shown below. When 2.7 g of aluminum is reacted with…

A: The reaction is as follows: The mass of Al reacting, = 2.7 g. The energy released during the…

Q: Given the following reactions: Fe2O3(s) + 3 CO(g)→2 Fe(s) + 3 CO2(g); ΔH = −28.0kJ 3 Fe(s)+ 4…

A: Interpretation: From the given reaction enthalpies, the enthalpy of Fe2O3 to Co reaction is to be…

Q: Calculate the AH for the reaction NO(g) + O(g) given the following information: NO₂(g) NO(g) + O3(g)…

A: Given aim equation is :  Step equations are : Calculate the change in enthalpy of the aim equation…

Q: What quantity of heat is liberated by the reaction of 0.403 mol of oxygen gas? For the reaction…

A: Given:  Moles of oxygen used = 0.403 moles  Chemical equation:  H2 (g). + 1/2 O2 (g)  -----> H2O…

Q: 2. Carbon dioxide can be formed from the reaction of carbon monoxide and oxygen. How many moles of…

A: (2)  2 CO + O2 ⟶ 2CO2  ∆H = -ve exothermic (heat released)       Here 2 mol CO produce = 787 kj…

Q: Given the following combustion reaction and its molar enthalpy of reaction: 2NO(g) + O2(g) 2NO2(g)…

A: Given reaction: 2NO(g) + O2(g) → NO2(g)             ΔHo = -112 KJ

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.