Which of the following statements is incorrect concerning the thermochemical equation below? 2 AB 3(g) → 2 AB2 + C₂; AH = 200 kJ The reaction is endothermic For every mole of AB3 consumed, 100 kJ of heat is consumed as well. The enthalpy of the reactants exceeds that of the products For the reaction 2 AB2+ C22 AB3, AH = -200 kJ

Q: A 3.527 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given,  Mass of the sample = 3.527 g  Initial temperature = Ti = 24.87 0C  Final temperature = Tf =…

Q: For the following thermochemical equation, CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)        ΔH = –890 kJ…

A: Given reaction: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l). ∆H = -890 kJ. So, 890 kJ of heat is released…

Q: A chemist must add 3,352 kJ of heat to 2 mol solid Al2O3 to cause it to break down to form 4 mol…

A: Given: Heat supplied to solid Al2O3 = 3352kJno of moles of Al2O3 taken  = 2molno of mol of Al formed…

Q: Methanol, CH3OH, boils at 65°C. What is the enthalpy change during the process in which 16.0 g of…

A: Mass of liquid methanol    = 16 g specific heat of methanol  = 2.53Jg oC

Q: If 500 grams of solid iron (Fe) at 100oC is placed in a calorimeter filled with 1000.0 grams of…

A: Given that: Mass of iron (Fe) = 500g Initial Temperature of Fe = 100°C Mass of water = 1000g Initial…

Q: A piece of calcite is heated to 72.0°C and placed in a styrofoam coffee cup containing 25.0 mL of…

A: GIVEN: The temperature of Calcite=72.0°C Volume of water= 25.0 mL The initial temperature of water=…

Q: 2. Write the thermochemical equation when one mole of nitrogen gas, N, reacts with one mole of…

A:

Q: A 53.33 gram sample of iron (with a heat capacity of 0.450 J/gºC) is heated to 100.0 ºC. It is then…

A:

Q: A 3.257 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: 5) When 45.0mL of 1.20M sulfuric acid (H2SO4) are added to 130.0mL of 1.00M sodium hydroxide, the…

A: 5. Given:…

Q: The following chemical equation, ΔΗ C (graphite, s) + 2 O2 (g) → CO2 (g) - 393. 5 kJ / mol - Is an…

A: Given reaction,         C(graphite, s)  +  2 O2(g)  →  CO2(g)    ∆H  =  - 393.5 kJ/mol

Q: When a student mixes 3.9537g of NaHCO3 with excess HCI in a constant pressure calorimeter the…

A: To calculate the enthalpy change , we would first calculate heat of solution .  Then we would…

Q: A 51.46 g piece of cadmium metal initially at 82.15 oC is placed in a calorimeter with 50.00 mL of…

A: Let the final temperature be x°C. From calorimetry, Heat loss by cadmium = Heat gain by water Heat…

Q: When 1.846 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A:

Q: Magnesium metal reacts with HCl according to the following balanced equation: Mg(s)  +      2 HCl…

A:

Q: $ A chemist measures the enthalpy change AH during the following reaction: 3 CH₂ Br(g) +…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: When a 3.00-g sample of liquid octane (Cg H18) burns in a bomb calorimeter, the temperature of the…

A: The amount of heat released in the combustion of 3 g liquid octane gets absorbed by the calorimeter.…

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

A: In the given question, molar enthalpy of a reaction is given as :-  H2(g) + F2(g) -----> 2HF(g)…

Q: A 50 gram sample of iron (with a heat capacity of 0.450 J/g ºC) is heated to 100.0 ºC. It is then…

A: Answer :-  Heat absorbed by the calorimeter = 1111 J…

Q: A balanced, generic thermochemical equation is shown below.  A, B, and C are substances involved in…

A:

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2…

A:

Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

A: For a chemical reaction or physical process to occur a certain amount of energy should be furnished…

Q: which is the correct enthalpy of formation reaction for nitrogen dioxide gas?

A:

Q: A gaseous fuel mixture contains 23.2% methane (CH4), 40.8 % ethane (C2H6) and the rest propane…

A: Given, the volume percentage ofThe volume of the tankTemperaturePressure

Q: During an experiment, 25 g of 0.32 M Ca(NO3)2 at 42°C is added to 103 g of 0.82 M HNO3 at 37°C in a…

A: 25 g of 0.32 M Ca(NO3)2 at 42◦ C are mixed with 103 g of 0.82 M HNO3 at 37◦ C . The increase in…

Q: Chlorine Tri fluoride is a toxic intensely reactive gas.  It was used in WWII to make incendiary…

A: It is an exothermic reaction having ∆H as negative value and 1196 kJ of heat is evolved.

Q: The combustion of 2.268 g of propanol (C,H,OH) increases the temperature of a bomb calorimeter from…

A: Given that : The mass of propanol = 2.268 g Initial temperature = 298.00 K Final temperature =…

Q: A gaseous fuel mixture contains 24.2% methane (CH4), 40.5% ethane (C₂H6) and the rest propane (C3H8)…

A: Given, Methane (CH4) = 24.2 %Ethane (C2H6) = 40.5 %Propane (C3H8)=35.3 %

Q: A 25.0 mL portion of dilute HCl (aq) is combined with a 25.0 mL portion of dilute NaOH in a…

A: Given that : The volume of HCl = 25.0 mL The volume of NaOH = 25.0 mL The initial temperature = 23.3…

Q: Calculate the enthalpy of the reaction 2NO(g) + O2(g)→2NO2(g) given the following reactions and…

A: The given data is as follows: Equation 1: 12N2(g) + O2(g) → NO2(g),             ∆HA∘=33.2 kJ…

Q: Titanium reacts with iodine to form titanium(III) iodide, emitting heat:2 Ti(s) + 3 I2(g)…

A: From the given chemical equation and data it is clear that  839 KJ energy is released from two moles…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 178. kJ during a…

A: