What is the change in enthalpy in kilojoules when 3.24 g of CH,OH gas is completely reacted according to the following reaction? 2 CH.OH(g) 2 CH.(g) + O:(g) AH = 252.8 kJ %3D

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: Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g) → CF4 (g) AH° =…

A: Hess's law of constant heat summation says that for a reaction occurring in multiple steps, the net…

Q: When 0.865 g sample of cyclohexane (molar mass = 84.16 g/mol) is burned in a bomb calorimeter, the…

A: The reaction of the combustion of cyclohexane is: C6H12(l)+9O2(g)→6CO2(g)+6H2O(l) Calculation of ∆H˚…

Q: What is the change in enthalpy when 9.00 mol of sulfur trioxide decomposes to sulfur dioxide and…

A: Given reaction 2SO2(g) + O2(g) → 2SO3(g); ΔH° = 198 kJ We need reaction 2SO3 → 2SO2(g) + O2(g) So,…

Q: Consider the hypothetical thermochemical equation 3 A + B → 2 C for which ΔH = 65.5 kJ/mol. What…

A: 3 A + B → 2 C  deltaH = 65.5 kJ/mol it means that this thermochemical reaction absorbed 65.5 kJ…

Q: Write the thermochemical equation for the following reaction that occur at constant pressure. 1.)…

A: A thermochemical equation is defined as a chemical reaction in which the enthalpy of the reaction is…

Q: Given the thermochemical equation 2 NO2 (g)= N2O4 (g) Delta H = - 57.2KJ what is the enthalpy change…

A: Enthalpy change (∆H) :-      It is the heat content of a system. The heat that passes into or out of…

Q: heat in cal

A:

Q: In a coffee-cup calorimeter, 140.0 mL of 1.3 M  NaOH and 140.0 mL of 1.3 M  HCl are mixed. Both…

A: In this whole process, the heat given out by the reaction is gained by the solution and as a result,…

Q: What is the change in enthalpy when 9.00 mol of sulfur trioxide decomposes to sulfur dioxide and…

A: Reversing the given reaction:

Q: What is the enthalpy of reaction, ΔH, for the formation of tungsten carbide, WC, from itselements? W…

A: The required equation is given below. W(s) + C (graphite) → WC (s)

Q: 5.2 g of NaOH is added to a coffee cup calorimeter containing 861 mL of 1.10 M acid, where the acid…

A: Given molarity of acid = 1.10 M  Volume = 861 mL  Density of the solution = Density of water = 1.0…

Q: When 3.0 grams of H2 is reacted with excess C at constant pressure, the reaction forms CH4 and…

A: The balanced reaction taking place is given as, => C (s) + 2 H2 (g) ------> CH4 (g) Given :…

Q: Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g) → CF4 (g) AH° =…

A: The reactions given are, 1) H2 (g) + F2 (g) -------> 2 HF (g)                  ΔHo = -79.2…

Q: When 0.0500 mol of HCI(aq) is reacted with 0.0500 mol of NaOH(aq) in 50.0 mL of water, the…

A: Answer - The correct option is - (c) –55.8 kJ  According to the question - Given - q = Cp*T =…

Q: 0.018 moles of a solute is dissolved in 14.85 g of water in a calorimeter with a heat capacity of…

A: Given data mole of solute = 0.018 mole mass of water = 14.85 g heat capacity of Calorimeter , Ccal =…

Q: Consider the combustion of butane: 2C4​H10​(g)+13O2​(g)-->8CO2​(g)+10H2​O(l), ΔHrxn = −2878 kJ/mol…

A: For the combustion of butane: 2C4​H10​(g)+13O2​(g)-->8CO2​(g)+10H2​O(l), ΔHrxn = −2878 kJ/mol…

Q: When ammonia reacts with dinitrogen oxide gas (ΔHf° = 82.05 kJ/mol), liquid water and nitrogen gas…

A: To determine the heat is liberated or absorbed by the reaction that produces 355 mL of nitrogen gas…

Q: When 2348 J of heat energy is added to 48.6 g of ethanol, C2H6O, the temperature increases by 19.7…

A: Molar heat capacity ( Cm ) :-  Cm = { q / n ∆T }  q is heat absorbed = 2348 J  Given mass = 48.6 g…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH gas is completely reacted…

A: Given mass of CH3OH = 3.24 g  Molar mass if CH3OH = 32.04 g.mol-

Q: • Write the thermochemical equation of the following reaction. The first one serves as an example.…

A: Exothermic reactions are those in which heat is evolved and endothermic reactions are those in which…

Q: When 0.865 g sample of cyclohexane (molar mass = 84.16 g/mol) is burned in a bomb calorimeter, the…

A: The given mass of cyclohexane = 0.865 g Molar mass of cyclohexane = 84.16 g/mol The number of moles…

Q: 38.When 36.92 grams of fictional compound X is added to water to make 297.9 grams of solution, the…

A: First calculate the energy for solution using formula of q = m*c*∆T and then divide this calculated…

Q: Application In an insulated calorimeter, 200.0mL of 1.00mol/L potassium hydroxide, KOH is mixed with…

A:

Q: equation below?                 2SO3(g) → 2SO2(g) + O2(g); ΔH° = 198 kJ Group of answer choices a.…

A:

Q: When 51.96 grams of fictional compound X is added to water to make 348.0 grams of solution, the…

A: Mass of compound X is = 51.96 g Molar mass of compound X is = 92.68 g/mol Specific heat of solution…

Q: 22. When heated, the decomposition of mercury (II) oxide will produce oxygen gas. 2 Hg0 (s) → 2 Hg…

A: It is an example of thermochemistry  Here we are required to find the volume of oxygen gas produced…

Q: Which of the following statements is incorrect concerning the thermochemical equation below?…

A:

Q: When 1.04E-1 g of Zn(s) combines with 5.79E1 mL of HCl(aq) in a coffee cup calorimeter, all of the…

A: Given,  Mass of Zn (s) = 1.04 x 10-1 g  Volume of HCl = 5.79 x 101 mL  Initial temperature = T1 =…

Q: Write the thermochemical equation for the following reaction that occur at constant pressure. 1.)…

A: The representation of a chemical equation along with its thermodynamic property i.e. enthalpy change…

Q: Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g)→ CF4 (g) AH° =…

A:

Q: If 35.0 g H2O at 22.7 °C is combined with 65.0 g H2O at 87.5 °C, what is the final temperature of…

A: The specific heat is determined as the ratio of heat required to the product of mass and temperature…

Q: Find the molar enthalpy in kJ per mol of H2 of the reaction: H2(g) + Cl2(g) → 2 HCl(g) given that…

A:

Q: When ammonia reacts with dinitrogen oxide gas (ΔHf° = 82.05 kJ/mol), liquid water and nitrogen gas…

A: Answer: -3.69 kJ heat is liberated (negative sign indicate the release of energy)

Q: 2.) Calculate the standard enthalpy of formation of gaseous di-borane (B2H6) using th following…

A: We have 4 B(s) + 3 O2(g) ---------> 2 B2O3(s)                          ∆H° = -2509.1…

Q: ΔH

A:

Q: For the chemical reaction H2 (g) + F2 (g) – 2 HF (g) AH° = -79.2 kJ/mol. %3D What is the enthalpy…

A: The given enthalpy of the reaction is -79.2 kJ/mol for the reaction: H2 (g) + F2 (g) → 2HF (g)

Q: Write the thermochemical equation  for the following reactions that occur at constant pressure.…

A:

Q: 9.49 AHn = 31.3 kJ/mol for acetone. If 1.40 kg of water were vaporized to steam in a boiler, how…

A:

Q: Ammonia burns in the presence of a platinum catalyst to produce nitric oxide, NO.…

A: To find the heat of reaction for the below reaction. 4NH3g+5O2→4NOg+6H2Og Given that: N2g+O2g→2NOg;…

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: The addition of 9.54 kJ of heat is required to raise the temperature of 207 g of a liquid…

A: Heat required to raise the temperature of 1g of substance through 1°C is knownas specific heat…

Q: Propane, C3HB, reacts with oxygen to produce carbon dioxide, water and heat. C3HB +5 02-3CO2 + 4 H20…

A: The reaction is said to be exothermic if the enthalpy change is negative.  The reaction is said to…

Q: What is the standard enthalpy of formation of liquid methanol, CH3OH()? C(graphite) + O2(9) – CO2(9)…

A: Note: As per our guidelines, We are supposed to answer only the first question (question 5). Kindly…

Q: The heat capacity of silicon dioxide (SiO2, 60.1 g mol-1), is 0.732 J g¬ K-1. Calculate the energy…

A: The heat capacity of SiO2 is = 0.732 J g-1 K-1 The molar mass of SiO2 is =60.1 g.mol-1 The moles of…

Q: The balanced thermochemical equation for the combustion of exactly one mole of propane is: C3H8 (g)…

A: Given equation is C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O(l) ΔH = -2220 kJ/mol  Let this be equation…

Q: Explain the attached

A: Given Volume of gas , V = 700 mL = 0.700 L Pressure of gas , P = 1.05 atm Temperature of gas , T =…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH gas is completely reacted…

A:

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.