For the combustion of 1.00 mol of toluene, C7H8 , at 25 °C and 1.00 bar, calculate the work that must be done against the atmosphere for the expansion of the gaseous products. w=   Using the enthalpy of formation data, calculate the standard enthalpy of reaction, ΔH . ΔH°=   Calculate the change in internal energy, Δu , of the system. Δu°=

Q: A student burnt 0.95 g of butanol using a calorimeter filled with 250 cm³ of water and noted a…

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Q: A 100.0 g piece of metal at 100°C is placed in contact with 50.0 g of water (s = 4.184 J g–1 °C–1)…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 273. kJ during a…

A: Given :  1. Change in Enthalpy = + 273 kJ  2. Work done = 122 kJ .

Q: 4. The work done in the isothermal, reversible expansion or compression of an ideal gas from volume…

A: We have to calculate  workdone by the gas in isothermal  reversible expansion of one mole of ideal…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 291. kJ during a…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 349. kJ during a…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 225. kJ during a…

A: a.) To Calculate the change in energy of the gas mixture , we would use first law of thermodynamics.…

Q: The change in internal energy for the combustion of 1.0 molmol of octane at a pressure of 1.0 atmatm…

A: Given data, The change in internal energy (Octane) = -5084.1 kJ The change in enthalpy = -5074.1 kJ

Q: Calculate the standard enthalpies of the following reactions from the standard molar enthalpies of…

A: The standard enthalpy of a reaction, ∆rxnHo can be calculated using the formula below: ∆rxnHo  =…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 202. kJ during a…

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Q: Measurements show that the energy of a mixture of gaseous reactants increases by 265. kJ during a…

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Q: iquid ethanol, (C2H5OH), combusts in the presence of oxygen, O2. The products of the reaction are…

A: The combustion is the burning of a substance in the presence of oxygen. The common products of the…

Q: When 100 mL of 0.200 M NaCl(aq) and 100 mL of 0.200 M AgNO3(aq), both at 21.9 °C, are mixed in a…

A: The balanced chemical equation is: NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq) Since all the…

Q: 5.000 g of Compound X with molecular formula C,Hg are burned in a constant-pressure calorimeter…

A: Given that, mass of compound X  = 5.000 g Molar mass of X(C5H8) = 68.000 g/molChange in…

Q: When 8.50g of solid potassium hydroxide is added to 500.0g of water in a calorimeter, the…

A: The values are provided in questionmass of potassium hydroxide = 8.50 g mass of water = 500 g…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 126. kJ during a…

A: Solution                                          Given that  Enthalpy is decreased = 126 kj Work…

Q: standard enthalpies c

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 388. kJ during a…

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Q: 5.000 g of Compound X with molecular formula C,Hg are burned in a constant-pressure calorimeter…

A: heat of formation is the heat released when a mole of compound is formed from the constituent…

Q: The heater used in a 4.33 m x 3.60 m x 2.86 m dorm room uses the combustion of natural gas…

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Q: PCI5(s) can be prepared by the reaction PCI3(1) + Cl2(g) - PCI5(s). Calculate the enthalpy change…

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Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: In the mechanism, curved arrows are used to show the transfer of electrons during the reaction.…

Q: Understanding the definition of enthalpy ARLYC Measurements show that the enthalpy of a mixture of…

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Q: Measurements show that the energy of a mixture of gaseous reactants increases by 175. kJ during a…

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Q: Measurements show that the energy of a mixture of gaseous reactants increases by 372. kJ during a…

A: The energy change of the given reaction is = 372. kJ The work done on the gas mixture is = -63. kJ…

Q: nitial temperature of a reaction is 10.0oC. When temperature increases to 20.0oC, the equilibrium…

A: we know ln k2k1=∆HR1T1-1T2where , k2= final rate constant                k1=Initial rate constant…

Q: 21.7 g of a basic solution was mixed with 87.6 g of water in a calorimeter with a calorimeter…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 151. kJ during a…

A: Enthalpy of a mixture of gaseous reactants are decreased by 151 KJ and - 92 KJ of work is done…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 104. kJ during a…

A: Hence reaction is endothermic..

Q: When 2.50 g of methanol undergoes complete combustion with excess oxygen 50.8 kJ of heat energy is…

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Q: The combustion of 1.839 g glucose, C6H12O6(s), in a bomb calorimeter results in an increase in the…

A: The quantity of heat absorbed by the calorimeter is calculated below. Negative sign indicates that…

Q: 6.000 g of Compound X with molecular formula C₂H4 are burned in a constant-pressure calorimeter…

A: Mass of water = 15.00 kg = 15000 g rise in temperature = ΔT = 4.426 °C Heat capacity of water =…

Q: 15.00 g of Compound X'with molecular formula C,H, are burned in a constant-pressure calorimeter…

A: Given: Mass of compound , X(C4H8) = 15.00 g  Molar mass of X(C4H8) = 56.107 g/mol Moles of compound…

Q: 59.8 J was required to raise the temperature of 25.0 g of ethylene glycol by 1.00 K. Calculate the…

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 206. kJ during a…

A: The work done on the gas mixture is =-145. kJ The change in the energy of the gas mixture is = 206.…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 140. kJ during a…

A: Enthalpy of a mixture of gaseous reactants increases by 140. KJ  It means enthalpy change (∆H) = +…

Q: 5.000 g of Compound X with molecular formula C-H are burned in a constant-pressure calorimeter…

A: Answer:Law of conservation of energy states that energy cannot be created nor destroyed, it can only…

Q: What is the relationship between internal energy (ΔU), andenthalpy (ΔH) for an endothermic process…

A: The relationship between internal energy (ΔU) andenthalpy (ΔH) for an endothermic process is to be…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 396. kJ during a…

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Q: Calculate the standard enthalpy for the reaction  1/2N2(g) + 1/2O2(g) -> NO (g) given the…

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Q: When nitroglycerin explodes, the chemical reaction that occurs can be assumed to be C3HsN3O9(1) →…

A: The reaction for the explosion of nitroglycerin is given below : C3H5N3O9(l)  →  3CO2(g)  +  32N2(g)…

Q: 2.000 g of Compound X with molecular formula C5H10 are burned in a constant-pressure calorimeter…

A: Given,Mass of compound x ( C5H10 ) = 2.000 gMass of water = 45.00 KgThe rise in temperature of water…