a. N2(g) + 3H2(g) → 2NH3(g)

Q: For which one of the following reactions is ΔH°rxn equal to the heat of formation of the product?…

A: Heat of formation is when 1 mole of any substance formed from its most common occuring form.

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

A:

Q: If we measure the heat change (q) of everything in a system except the calorimeter, we can use the…

A: Hot water will lose it and cold water and the calorimeter will gain heat.

Q: Given: 4AlCl3(s) + 3O2(g) → 2Al2O3(s) + 6Cl2(g); ΔH = –529.0 kJ determine ΔH for the following…

A: The delta H for the above thermochemical reaction is given as follows

Q: For the reaction CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH* = −890.3 kJ and ΔS* = 243.0 J/K. What is…

A: Second law of Thermodynamics states that entropy of an isolated system always increases and heat…

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

A:

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:…

A:

Q: The standard enthalpy change for the following reaction is 270 kJ at 298 K. 2 HNO3(g) N2(g) + H2(g)…

A: Heat of formation of HNO3 = -135KJ/mol

Q: From the following enthalpies of reaction find ΔHrxn for 2 HCl(g) + F2(g) ---> 2 HF(l) + Cl2(g):  4…

A: Given, 4 HCl(g) + O2(g) ---> 2 H2O(l) + 2 Cl2(g); ΔH = -148.4 kJ/mol1/2 H2(g) + 1/2 F2(g) --->…

Q: 5. Given the following equations and AH values, determine the heat of reaction (kJ) at 298 K for the…

A: Hess's law is defined as the law which states that the total amount of heat absorbed or released for…

Q: The following reaction was performed in a constant volume bomb calorimeter: 2N2O(g)  +  3O2(g)   →…

A: Given:  Delta H = -31.7 KJ /°C  Delta T = 0.385 °C  Heat capacity = 5.16 KJ/°C

Q: The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2…

A: the solution is as follows:

Q: Use Equations a and b to determine ΔH for the following reaction.2CO(g) + 2NO(g) → 2C O 2 (g) + N 2…

A: The main equation or primary equation can be obtained by inverting equation (b) and then adding it…

Q: Sodium hydroxide (39.9971 g/mol) reacts with excess H2SO4 in a constant-pressure calorimeter. The…

A: Given ∆T = 29°CMass of reaction mixture = M = 120 gSpecific heat of solution = Cs = 4.184 J/g°CHeat…

Q: Glucose (C6H12O6) can be converted by an anaerobic bacteria to acetic acid, carbon dioxide, and…

A: To solve this problem we have to know about the heat of reaction .

Q: The decomposition of hydrogen peroxide, H2O2, has been used to provide thrust in the control jets of…

A: To determine how much heat is produced by the decomposition of 1.25 moles of H2O2 under standard…

Q: Given the thermochemical reaction CH4 + 2O2 → CO2 + 2H2O      ΔHΔ� = -890.0 kJ   how much energy…

A:

Q: For which of the following reaction is the enthalpy change for the reaction equal to ΔHf° of the…

A: Formation reactions are those reactions in which the 1 mole of any species is produced from the…

Q: Consider the reaction 2HCL (aq) + Ba(OH)2 (aq) → BaCl2 (aq) + 2H2O (l) ΔH = -118 KJ Calculate the…

A: The number of moles of each reactant is calculated as, The balanced equation is, 2HCL (aq) +…

Q: Consider the reaction: 3N2O(g) + 2NH3(g) —> 4N2(g) + 3H2O(g) ∆H°rxn = -879.6 KiloJoules. What is the…

A:

Q: 19.) Which of the following exothermic reactions has a magnitude of the enthalpy of reaction lower…

A: We know that -> ∆H = ∆U + ∆ngRT ∆H = enthalpy of reaction ∆U = internal energy  ∆ng = ng(product)…

Q: 2 C₂H6 (g) + 7 02 (g) →4 CO2 (g) + 6 H₂O (1) AHrxn-3121 kJ How many grams of C₂H6 are required in…

A: Given that2C2H6(g) + 7O2(g) ---> 4 CO2(g) + 6 H2O(l) ∆Hrxn = -3121 kJHow many grams of C2 are…

Q: The standard enthalpy of combustion of solid carbon to form carbon dioxide gas is -393.7 kJ per mol…

A:

Q: The standard heat of formation of HCl(g) is -92.3 determine Hrxn (in KJ) for a reaction:…

A:

Q: a. H2S(g) + 2H2O(g) → 3H2(g) + SO2(g) b. N2(g) + O2(g) → 2NO(g) c. CaCO3(s) → CaO(s) + CO2(g)…

A: THE SOLUTION IS SHOWN BELOW.

Q: Use the standard reaction enthalpies given below to determine Hᵒrxn for the following reaction:…

A: Given,  N2(g) + O2(g) --------> 2NO(g)  ∆H°rxn= +183 kJ    1/2 N2(g) + O2(g) -------> NO2(g)…

Q: If we measure the heat change (q) of everything in a system except the calorimeter, we can use the…

A: Given: mass of hot water = 5.59 g mass of cold water = 5.62 g C = 4.186 J/g°C Temperature of hot…

Q: The standard enthalpy change for the following reaction is -92.2 kJ at 298 K. N2(g) + 3 H2(g)→2…

A: standard enthalpy change for the reaction is given as, ΔHrxn = -92.2 KJ  Since the enthalpy change…

Q: Given the standard enthalpies of formation for the following substances, determine the reaction…

A: The enthalpy change of a chemical reaction can be calculated by the standard heat of the formation…

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the followingreaction:…

A: The given reaction is deduced by multiplying reversing the first reaction and further multiplying by…

Q: The enthalpy of decomposition of NO₂Cl is -114.0 kJ. Use the following data to calculate the heat of…

A: The enthalpy of decomposition of NO2Cl is –114.0 kJ.  NO2Cl (g) → NO2 (g) +12Cl2 (g);  ∆H°r×n =…

Q: A quantity of 2.00×102 mL of 0.786 M HCl is mixed with 2.00×102 mL of 0.393 M Ba(OH)2 in a…

A: It is given that 200 mL of 0.786 M HCl is mixed with 200 mL of 0.393 M Ba(OH)2, at an initial…

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

A: Answer:Enthalpy change is an extensive property and it is additive in nature, therefore, enthalpy…

Q: The standard enthalpy change for the reaction below is ΔH°rxn = −757 kJ.  3 SF4 (g)  +  4 BCl3 (g)…

A: The balanced reaction taking place is given as, 3 SF4 (g)  +  4 BCl3 (g)  →  4 BF3 (g)  +  3 SCl2…

Q: Ba (OH)2 (s) + 2 NH4Cl (s)  →  BaCl2 (s) + 2 NH3 (g)  +  2 H2O (l)  ΔHf° (kJ/mol)   -626.56…

A: Given reaction; Ba(OH)2 (s) + 2NH4Cl (s)  →  BaCl2 (s) + 2NH3 (g)  +  2 H2O (l)  Mass of water m =…

Q: If we measure the heat change (q) of everything in a system except the calorimeter, we can use the…

A: Given: Mass of hot water                             = 5.85 g Initial temperature of hot water…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.