Study the following thermochemical data very carefully: Cl2(g) I2(g) → ICI(g) - I2(s) → I2(g) 2CI(g) 21(g) I(g) + CI(g) AH° = 242.3 kJ AH° = 151.0 kJ AH° = 211.3 kJ AH° = 62.8 kJ 12(s) reacts with Cl2(g) to produce ICI(g). Write the chemical equation to produce ONLY one mole of ICI(g) What law did you use to calculate AH° above? What are the names of the following processes? I2(s) I2(g) 12(g) 21(g) ICI(g) - I(g) + CI(g)

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol1 K-1. How much heat in cal is…

A: `Given:-  Molar Heat Capacity for CO = 6.97 cal mol-1 K-1 Final Temperature = 392K Initial…

Q: he combustion of naphthalene , which releases 5150.1 kJ/mol, is often used to calibrate…

A: The heat capacity, C, of the calorimeter is; 5150.1 kJ/mol×mnephthaleneMMnephthalene=C∆T5150.1…

Q: 1. Write the thermochemical equation of one mole of nitrogen gas, N2 reacts with oxygen gas, 02, two…

A: Chemical reactions are almost invariably accompanied by energy changes, which ordinarily appear in…

Q: Write the thermochemical equation for the following reactions that occur at constant pressure: (a)…

A: In a chemical reaction, some of them require energy to convert reactants to product, such reactions…

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: To solve this problem we will use the given two thermochemical equations .

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: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

A: Given: Energy needed to heat a pint of water from room temperature = 36400 Cal Heating 0.900 pint of…

Q: Use the following thermochemical equations as needed to find the heat of formation of diamond:…

A: As per given question, we need to find the heat of formation of diamond. For the formation of…

Q: The specific heat capacity of copper is 0.384 J /g* degrees C. What is the molar specific heat…

A: For copper, Specific heat capacity, Cs = 0.384 J / g ℃ Molar mass, M = 63.54 g mol-1 Molar heat…

Q: heat in cal

A:

Q: Using the equations 2 H2 (g) + O2 (g) → 2 H¿0 (I) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: If we multiply by any number or divide to the chemical reaction then ∆H will also multiply or divide…

Q: Given the following thermochemical equation: 2Al(s) + 312(s) 2A|13(s); AH= -627 kJ Determine the…

A: Here from the balance equation we can calculate the enthalpy change of the reaction .

Q: What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471…

A: Heat of reaction or enthalpy change ∆Hrxn is defined as heat released and absorbed during a…

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: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

A: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

Q: A generic solid, X, has a molar mass of 84.1 g/mol.84.1 g/mol. In a constant‑pressure calorimeter,…

A: Given: The mass of solid and water is 22.3 g and 213 g, respectively. The initial and final…

Q: The molar heat capacity of a compound with the formula C₂H6SO is 88.0 J/mol-K. What is the specifi…

A:

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 quantity of energy released/absorbed in a chemical reaction is furnished by the enthalpy change…

Q: What is the formula to calculate heat energy required to raise the temperature of any substance? O…

A: we need to select the correct formula to calculate heat energy needed to raise the temperature of a…

Q: (a) Consider the following thermochemical data to: 2CO2(g) → 2 C (s, graphite) + 2 O2 (g) AH° =…

A: The enthalpy change of an reaction is extensive property i.e on changing the stoichiometry of…

Q: Calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) using the…

A: We have to calculate the standard enthalpy of formation of gaseous carbon tetrafluoride (CF4) as…

Q: 1. Determine the change in enthalpy for the following reaction: N2H4(1) + 2H2O2(1) → N2(g) + 4H2O(1)…

A:

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: A 33.5-ml sample of benzene at 39.2°C was cooled to its melting point, 5.5 °C, and then frozen at…

A: Volume of benzene = 33.5ml Density of benzene = 0.876g/ml Ti = 39.2∘C Melting point = 5.5°C Cpl =…

Q: How much heat does it take to raise 50.0 g of liquid water to 120 °C if its initial temperature is…

A:

Q: 7.) Use the following thermochemical equations as needed to find the heat of formation of diamond:…

A: We can solve this problem using this concept, Graphite and diamond are in equilibrium state at their…

Q: Use the following thermochemical equations as needed to find the heat of formation of diamond:…

A: Interpretation-  To determine the heat of formation of diamond by using following thermochemical…

Q: The following data was collected during calorimetry experiments. 2 CH3CHO(g) + 5 O2(g) H2O(e) → 4…

A:

Q: Calculate the energy needed to heat 1.98 mol of aluminium oxide from 34.1 °C to 58.7 °C.

A:

Q: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

A: The amount of energy required to heat a pint of water is 36400 cal. The amount of water taken by…

Q: The familiar "ether" used as an anaesthetic agent is diethyl ether, C4H20O. Its heat of vaporization…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Calculate the enthalpy  of formation of ammonium perchlorate.

A: The study of heat energy changes associated with chemical reactions and physical transformations is…

Q: How much heat (in cal) is needed to heat a container of water (with a mass of 5 kg) (specific heat…

A: Given, Note: 1Kg = 1000 g Mass of water (m) = 5 Kg = 5000 g Specific heat capacity of water (Cp) =…

Q: A sample of gaseous xenon is heated with an electrical coil. If 19.2 Joules of energy are added to a…

A: Final temperature can be calculated as follows

Q: When 1 mol of CS2(l) forms from its elements at 1 atm and 25 ° C,  89.7 kJ  is absorbed, and it…

A: Hess law of constant heat summation: This law states that regardless of the multiple stages or steps…

Q: What is the mass (in g) of a sample of diamond (specific heat = 0.502 J/(g K) which evolve (-8.96)…

A: We know, heat evolved, Q = ms(Tfinal - Tinitial)

Q: Which of the following is the correct molar specific heat of water used when making calculations…

A: Specific heat capacity is defined as the amount of heat required to increase the temperature of one…

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

A: It is given that the enthalpy for the reactions, H2(g) + F2(g) → 2 HF(g) ∆H° = -79.2 kJ/mol  C(s) +…

Q: Benzoic acid is used to determine the heat capacity of bomb calorimeters because it can be obtained…

A: Given that : The energy of combustion (Hcombustion) = -26.43 kJ/g Temperature increase (∆T) =…

Q: A copper cylinder has a mass of 76.8g and a specific heat of 0.092 cal/g°C. It is heated to 86.5°C…

A:

Q: Which of the following statements is incorrect concerning the thermochemical equation below? 2SO_3…

A: The given reaction is :2 SO3 (g) → 2 SO2 (g) + O2 (g) ; ∆H° = 198 kJa. the enthalpy of the reactants…

Q: heat in cal

A:

Q: The specific heat capacity of liquid bromine is 0.226 J g^−1 K^−1. How much heat is required to…

A: In this question, we have to calculate the heat needed to raise the temperature of 31.2 g of bromine…

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: How much energy, in units of J, is required to heat 67.5 g of solid acetone from -145.3°C to…

A: Heat is required when a substance is heating. It can be determined by following formula-  q = mc∆T…

Q: Use the following thermochemical equations as needed to find the heat of formation of diamond.…

A: Given equations are : 1). C (diamond) +  O2 (g)  --------> CO2 (g) , ΔH1 = -395.4 KJ  2). 2CO2…

Q: A 49.7-mL sample of benzene at 35.7°C was cooled to its melting point, 5.5 °C, and then frozen at…

A:

Q: 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from…

A:

Q: Which of the following scenes depict the process of an increase in the enthalpy?     Stirring a…

A:

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.