Write thermochemical equations for the decomposition of one mole of the following compounds into the elements in their stable states at 25oC and 1 atm. (a) ethyl alcohol, C2H5OH

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: Calcium carbide (CaC2) reacts with water to form acetylene(C2H2) and Ca(OH)2. From the following…

A: Given equation is,

Q: . Given below is the exothermic reaction involved in the production of ammonium chloride,…

A: NH3(g) + HCl (g) = NH4Cl (s) , ∆H = -176.2 kJ

Q: 2. A 1.07 g sample of sulfur was burned in a bomb calorimeter with calorimeter constant of 2.03…

A: Mass of sulfur sample = m = 1.07 g Calorimeter constant = C = 2.03 Kcal/°C Temperature change = ∆T =…

Q: What is the standard heat of reaction (in kJ) at 500 °C for complete combustion of gaseous ethanol…

A: Combustion of ethanol :- C2H5OH + 3 O2 ----> 2CO2 + 3H2O     Temperature = 500°C

Q: Given the following thermochemical equations, C2H2(g) + 5/2 O2(g) → 2CO2(g) + H2O(l) ∆H = -1299.5 KJ…

A:

Q: Given: CH:(e) = 2C[graphite) + H:(g) AG° = -209 kJ A sample of gaseous C,H; (acetylene, or ethyne)…

A: The given reaction is shown below.            C2H2(g) ⇔ 2C (graphite) + H2(g) (acetylene) The Gibbs…

Q: Given the heat capacities at constant pressure, Cp, in J/K-1mol-1 for the substances A, B, and C as…

A: In this question, we want to determine the value of ∆rH° at 2000°C temperature.  How we can…

Q: 11 Q nple of KOH(s) at 25.0 C was added to 100.0 g of H,O(1) at room temperature inside an insulated…

A: Given that,  KOH is dissolved in water. After all the KOH is dissolved, the temperature of the…

Q: Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction…

A: The standard enthalpy of a chemical reaction is defined as the amount of heat that is absorbed or…

Q: The thermochemical reaction equation for photosynthesis is as follow: 6H2O (l) + 6CO2 (g) → C6H12O6…

A: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical…

Q: Coal can be converted to methane, a chief component of natural gas, according to the following…

A: The given chemical reaction is as follows: C(s) + 2H2(g) ↔ CH4(g) ∆H°=-74.85 kJ/mol=-74.85…

Q: If a reaction occurs very slowly and is endothermic then it cannot be spontaneous. True or false?

A: Spontanious reaction means the ability of the reaction to procede to right right i.e. towards the…

Q: Decomposition of CaCO3(s) into CaO(s) and CO2(g), ΔHᵒ 25ᵒ = 178 kJ

A: Decomposition reaction CaCO3 (s)    →              CaO(s)  +  CO2(g)        ΔH = +178 kJ…

Q: D. The First Law of Thermodynamics. Diagrams (a)-(d) represent various physical and chemical…

A: In thermodynamics, there are three types of systems. The open system exchanges matter and energies…

Q: For the complete combustion of 1.000 mole of ethane gas at 298 K and 1 atm pressure, ΔH° = -1560…

A:

Q: The value of  G° at 141.0°C for the formation of phosphorous trichloride from its constituent…

A: Given: ∆H° = -720.5 kJ/mol ∆S° =  -263.7 J/K = -0.2637 KJ/K Temperature (T) = 141.0°C = 141 +273.15…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: Calcium carbide is widely used in the industrial preparation of acrylic acid.

Q: Given: C2H2(g) ⇌ 2C(graphite) + H2(g) ΔG° = -209 kJ A sample of gaseous C2H2 (acetylene, or ethyne)…

A: Relative to graphite and hydrogen, acetylene(C2H2) is unstable. Its decomposition to form these…

Q: ₂0 and 0.444 J/g.°C for Fe. eat capacity of the calorimeter = 3/°C

A: The calorimetry rule says, Heat lost by iron = Heat gained by calorimeter + water Heat lost=mc∆T…

Q: 1.Define direct calorimetry and indirect calorimetry, and describe how hey are used to measure…

A: Direct calorimetry measures heat production and indirect calorimetry measures gas exchange, oxygen…

Q: Predict the sign of ∆Ssys for each of the following processes: Gaseous CO reacts with gaseous H2 to…

A: Entropy of the system is a measure of its randomness.If the number of molesare more,entropy will be…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A:

Q: Determine the heat of reaction for the decomposition of one mole of benzene to acetylene C6H6(l)  >…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: Show the calculation of the heat of reaction (AHrxn) for the reaction: CH4 (g) + 2O₂ (g) → CO₂ (g) +…

A:

Q: The heat of combust ion of fructose, C6H12O6, i s-2812 kJ/mol. If a fresh golden delicious apple…

A: Heat of combustion of  C6H12O6 = -2812 KJ/mol Heat of Combustion of CO2(g)= -393.5 KJ/mol Heat of…

Q: Consider the combustion of liquid methanol, CH30H (1) CH,OH() + 0:(8) – co.(8) + 2 H,0(1) AH =…

A: Given  CH3OH(l) + (3/2) O2(g) ---> CO2(g) + 2H2O (l)  ∆H = -726.5 kJ

Q: Calculate ΔH∘ΔH∘ in kilojoules for the reaction of acetylene (C2H2)(ΔH∘f=227.4kJ/mol) with O2O2 to…

A:

Q: In a bomb calorimeter, 6.251 g of propane gas was ignited in the presence of excess oxygen gas to…

A: For any chemical reaction, the enthalpy is considered as the state function that is it depends on…

Q: Hydrogen peroxide can decompose to water and oxygen by the reaction  2H2O2(l)--->2H2O(l)+O2(g)…

A: The given reaction is: 2H2O2 (l) ---> 2H2O (l) + O2 (g) Molar mass of H2O2 = 34 g/mol

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A:

Q: Write the proper thermochemical equation for the formation of one mole of nitrogen dioxide(gas) from…

A: The formula of Nitrogen dioxide is NO2  Hence to make NO2 we will need element O and N since there…

Q: For the reaction below, determine the difference in relevant particles that alloW for determination…

A: Interpretation -  To determine the difference in the relevant particle that are allow for the…

Q: Given the following thermochemical equations, calculate ΔH for the decomposition of one mole of…

A: The compound given is C2H2 (g). The elements present in the compound are C i.e carbon and H i.e…

Q: 7.6 Given the thermochemical equation 2SO2 + O2 →2SO3, ΔH = -198kJ/mol, what is the standard…

A: Given thermochemical equation is

Q: Ammonia burns in the presence of a platinum catalyst to produce nitric oxide, NO: 4 NH, (g) + 50,…

A:

Q: For the highly exothermic reaction H2(g) + 1/2 O2(g) → H2O(g) qrx =DHrx = -242 kJ, What quantity of…

A: Given: no of moles of H2 =17.9molno of moles of O2 = 1.13 molThe reaction is:H2(g) + 1/2 O2(g) →…

Q: Classify the formation of methane from its elements in their reference states as exergonic or…

A: The formation of methane from its elements in their reference states can be given by the following…

Q: For the complete combustion of 1.000 mole of ethane gas at 298 K and 1 atm pressure, Δ H° = -1560…

A: The complete combustion reaction for ethane is given as - C2H6 +   7/2O2 --->  2CO2 +  3H2O…

Q: Given the following reactions N2 13 + O2 (g) → 2 NO 13) AHn = +178 kJ NO2 g NO g + 1/2 02 (g) AHren=…

A: From given two chemical equation we have to calculate the enthalpy change for the reaction : 4 NO…

Q: 1. Calculate the standard enthalpy change when gaseous dinitrogen tetroxide (N2O4) reacts with…

A: ∆fH°(N2O4) = 9.66 KJ/mol ∆fH°(H2O) = -241.82 KJ/ mol ∆fH° ( H2) = 0 ∆fH° ( N2) = 0

Q: 13. (a) How much heat wih be evolved or absorbed in the solution of 2 moles of H,SO,(1) in a very…

A:

Q: Given the following thermochemical equations, C2 (g) +5/2O2 (g) → 2CO2 (g) +H2O (l) ΔH = −1299.5kJ…

A: Given: C2H2(g)+52O2(g)→2CO2(g)+H2O(l)     ∆H=-1299.5 kJ---eqn(1)C(s)+O2(g)→CO2(g)…

Q: Given the following thermochemical equation: CaCO3(s) → CaO(s) +CO2 (g) AH=177.8 kJ/mol What is the…

A: Given: ∆H for the reaction = 177.8 kJ External pressure = 12.3 atm Initial volume = 2.0 L Final…

Q: 14 Write the thermochemical equation for the combustion of liquid butane (C.H10). AH = kJ CAH10 0) =…

A:

Q: Given the following reactions CaO (s) + CO2 (g) AH = 178.1 kJ %3D CaCO3 (s) AH = -393.5 kJ C (s,…

A: Hess' law of constant heat summation: The Hess law states that the change of enthalpy in a chemical…

Q: On the basis of thermochemicat equations (i), (i) and CH), find out which of the algebric…

A: Given  C(graphite)   + O2   → CO2(g)         ∆rH  = x KJmol-1          ( Equation 1 ) C(graphite)…

Q: 2. For the following reaction at 25°C, AG° is -118.4 kJ. At what pressure of O2 gas does AG = 0 at…

A:

Q: 1) When 120 mg of naphthalene, C1oHae), was burned in a bomb calorimeter the temperature rose by…

A: Standard heat of combustion of Naphthalene = - 5156.1 kJ/mol Standard heat of combustion of Phenol =…

Q: (b) What is the specific enthalpy of combustion of ethane? kJ/g. 3 sig. number.

A: