Given the following thermochemical equations: 2NO(g) + O2(g) → 2NO2(g) ∆H° = -113.2 kJ 2N2O(g) + 3O2(g) → 4NO2(g) ∆H° = -28.0 kJ Сalculate ∆H° for the reaction: N2O(g) + 1/2 O2(g) → 2NO(g)

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

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Define molar heat capacity. O the quantity of heat required to change a system's temperature by 1°C…

A: Molar heat capacity is defined as the quantity of heat required to raise the temperature of one mole…

Q: A bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.111g sample of ethylene (C2H4) was…

A: 1) Calculate the heat energy gained by calorimeter.   2) Covert the above obtained heat energy into…

Q: (a) Consider the following chemical reaction: 3FE203(s) + C0(g) → 2FE304(s) + CO2(g) AH° = ? Use the…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Consider the following two reactions: N2(g) + 202(g)2NO:(8) AH = +88 kJ Na(g) + 20:(g) N20.(g) AH =…

A:

Q: We can use Hess’s law to calculate enthalpy changes that cannot be measured. One such reaction is…

A: We have measured the enthalpy of reaction for following Reaction -  2 CH4(g) ---->  C2H4(g)  +…

Q: Calculate ΔH° for the combustion of methane. CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) Given the…

A: We have to calculate the ∆H° for Reaction.

Q: he energy density of a fuel is 64.36 kJ/g. A 63.61-g sample is burned in an apparatus with a…

A: Energy density= 64.36 kJ/g  Mass = 63.61 g  Energy(q) ) = 64.36 × 63.61    = 4093.9396 kJ  Energy…

Q: has

A: We wil use Clausius clapreyon Equation

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.79 g…

A: Given:  Heat released due to combustion of 1 mole glucose = 2820 KJ  Molar weight of glucose = 180…

Q: A 1.72 g sample of the saccharide, C6H1206, shown below is combusted in a constant volume…

A: By the estimate of the enthalpy of reaction by looking at the individual bonds involved. If we know…

Q: Given that that AH of formation of n-butane. J: C-H - 412, C-C-340, H-H- 436, AH ab kl graphite:…

A: Interpretation-  To determine the enthalpy of formation of n- butane when here given ∆HoB.D / KJ :…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + 2H2(g) ->…

A: Recall the given equations with value of standard enthalpy chages 2Cs + 2H2g → C2H4g  ,∆H°=52.3 kJ…

Q: Given the standard enthalpy changes for the following two reactions: (1) Sn(s) +…

A: The reactions given are 1) Sn (s) + Cl2 (g) -------> SnCl2 (s)…

Q: The combustion of 0.1593 g benzoic acid increases the temperature of a bomb calorimeter by 2.55°C.…

A:

Q: Calculate the AHO for the reaction Cbte + 2H, → CHAG) (graphite) '2(g) from the following enthalpy…

A: Given,

Q: Under constant-volume conditions, the heat of combustionof glucose (C6H12O6) is 15.57 kJ/g. A…

A: (a) Here given as, the heat of combustion of glucose (C6H12O6), q= 15.57 kJ/g. Mass of glucose that…

Q: State the law of conservation of energy. How does it relate to energy exchanges between a…

A: For an isolated system, its total energy remains constant. The energy of system will change if it…

Q: The complete combustion of ethanol, C2H5OH 1molar mass =46.0 g>mol2, proceeds as…

A: Calculate the number of moles of ethanol. Number of moles of ethanol = Given mass of ethanolMolar…

Q: Which statement would be the best interpretation of the First Law of Thermodynamics? 1. The total…

A: First law of thermodynamics states that, " the change in the internal energy of the system is equal…

Q: Assume that coal is essentially all carbon and has a density of 1.5 g/mL. 1. How much heat is…

A: Given : Density of coal = 1.5 g/mL Dimensions of coal = 7 cm X 5 cm X 6 cm And coal is all carbon…

Q: (Q7) The piston in the engine of a car converts the energy released by octane combustion into…

A:

Q: A bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.111g sample of ethylene (C2H4) was…

A: The amount of heat transfer is given as  Q = heat capacity X temperature difference Q= 2.47 x 2.26 =…

Q: State the second law of thermodynamics. How does the second law explain why heat travels from a…

A:

Q: 1. Consider the following reaction:            2CH3OH(g) --> 2CH4(g)+ O2(g)    ΔH= 252.8 kj  (a)…

A:

Q: The energy density of a fuel is 64.36 kJ/g. A 63.61-g sample is burned in an apparatus with a…

A: The following  problem is solved through  calometric study as explained in next step

Q: Provide the definition of the second law of thermodynamics. How does the second law explain why heat…

A:

Q: Calculate the change in the internal energy in the formation of SO3 using the following…

A: ∆H=∆E +∆NgRT Where  ∆H = change in enthalpy  ∆E= change in internal energy ∆Ng= change in no. Of…

Q: Consider the reaction below for the combustion of methane (CH4, which is the principal component of…

A:

Q: Carbon disulfide burns in air, producing carbon dioxide and sulfur dioxide. CS2 (l) + 3 O2 (g) → CO2…

A:

Q: Calculate the change in internal energy (ΔU) for a system that is giving off 25.0 kJ of heat and is…

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: State the First Law of Thermodynamics.

A:

Q: Based on the reactions: 1. 2NO2 (2)→N204 (g) AH1 =- 57.2 kJ 2. 2NOg) + 02 (g)→2NO2 (2) AH2 = -114.1…

A: By Hess's law : Required equation = equn 1 + equn 2 ∆H = ∆H1  + ∆H2         = -57.2 + ( -114.1 )…

Q: Consider heating 1.0 kg of water at a constant pressure of 1 atm. How much heat is needed to raise…

A: Given : Mass of water = 1 kg = 1000g Pressure = 1 atm Initial temperature, t1 = 25°C Final…

Q: 3. Complete combustion of 1.00 mol of ace tone (C3H6O) liberates 1790 kJ:  C3H6O(ℓ) + 4O2(g) --->…

A: When a compound or substance reacts chemically with oxygen present in the air then this type of…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Zn(s) + O2(g)2ZNO(s).....…

A: Given: The reaction are as follows: 2Zn(s) + O2(g)------>2ZnO(s)                      ∆H0=-696.6…

Q: Given the thermochemical equations X, +3 Y, - → 2XY; AH1 = -330 kJ X, + 2Z, 2 XZ, AH2 = -190 kJ %3D…

A: Given data is as follows: X2 + 3Y2 → 2XY3            ∆H1=-330 kJ                          ...... (1)…

Q: How much energy is required to heat 450 g of water from 20°C to 100°C? (C = 75.291 J/mol•K for H20;…

A: We know that  q = m × C ×  ΔT Where  q = heat absorbed or released m = mass of reactant C =…

Q: Given the following thermochemical data at 25°C and 1 atm pressure, 3/2 O2(g) + 2B(s) → B2O3(s); AH°…

A:

Q: elect the ???? description about the second law of thermodynamics. *       A. Measure of the…

A: Second law of thermodynamics is given because as per first law energy can be converted from one form…

Q: The reaction which occurs in the catalytic converters of some automobiles is 2CO(g) + 2NO(g) → N2(g)…

A:

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g)→4S(s) + 602(g) AH°rxn = ??? kJ…

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

Q: Given that enthalpy of formation of the several compounds: C(s)+O2(g)→CO2(g);AH=-393.5kJ…

A: Enthalpy is an extensive property will depend on the number of moles of species

Q: Consider the reaction: NH,NO3(s) → N20(g)+ H2O(1) AH° rxn = -127.49kJ Calculate the enthalpy of…

A: The chemical reaction :  NH4NO3(s) ---> N2O(g) + H2O(l)  ∆H°rxn  = -127.49 KJ  Enthalpy of…

Q: Consider these reactions, where M represents a generic metal.…

A: The given reaction is,

Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.8 kJ/°C. When a…

A:

Q: What are the two factors that determine the change in energy of a system? O heat and temperature O…

A: By the first law of thermodynamics, The change in energy of a system equals the net heat transfer…

Q: 21. The enthalpy changes of these reactions can be measured: AH° = -1411.1 kJ - 2 CO,(g) +2 H,0(() 2…

A: Given  C2H4(g)  +  3O2(g)     →  2CO2(g)  +  2H2O(l)                 ∆H° = -1411.1 KJ          (…

Q: A.) Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + O2(g)2NI0(s)…

A:

Q: Which of the following equations is TRUE about combustion in the context of first law of…

A: Combustion in general, a reaction between hydrocarbon and oxygen to produce CO2, H2O and large…