Consider the reaction. 2H2+O2⟶2H2OΔHrxn=−484 kJ2H2+O2⟶2H2OΔHrxn=−484 kJ Which answer best describes the transfer of heat that occurs when 1.61 mol H21.61 mol H2 reacts with 0.767 mol O2?0.767 mol O2? a) 371 kJ371 kJ absorbed b) 3.90×102 kJ3.90×102 kJ released c) 3.90×102 kJ3.90×102 kJ absorbed d) 371 kJ371 kJ released e) 484 kJ484 kJ released f) 484 kJ484 kJ absorbed

Q: Consider the chemical equation 2 A + 3 B ---> 4 C + D The reaction enthalpy is 705 kJ How many…

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Q: A sample of sucrose was burned in a calorimeter, and 41,600 joules of heat energy were released.…

A: Energy can neither be created nor be destroyed. Thus, heat released from sample of sucrose is…

Q: Consider the reaction. 2 H, + 0, → 2 H,0 AHrxn = -484 kJ Which answer best describes the transfer of…

A: Heat released during reaction can be calculated based on limiting agent.   For finding the limiting…

Q: A 56.59 g sample of a substance is initially at 25.6 °C. After absorbing 2789 J of heat, the…

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Q: 23. Use the following information to determine the enthalpy for the reaction shown below. CS2(1) +…

A: C(graphite) + 2S(s) → CS2(l)                        Formation of CS2(l)= ∆H∘(CS2)= 87.9 kJ    CS2(l)…

Q: Given the AH for the following reactions, P4(s) +6C12(g) →→ 4PC13 (8) AH = -2439 kJ 4PC15(g) → P4(s)…

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Q: Thermochemical equations are chemical equations that clearly show the relationship between mass of…

A: Given combustion reaction is                                    CH4 (g)    +     2  O2(g)…

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

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Q: If the energy change of the calorimeter (qCal) = 3,589.6 J, the energy change of the solution…

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Q: Consider the reaction 2H2+O2⟶2H2O          Δ?rxn=−484 kJ Which answer best describes the transfer…

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Q: רPi How much heat will be released (AH) if 0.2037 mol of NH3 are mixed with 0.20 mol of O2 in the…

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Q: CS2 and 10.0 g Cl2 reacts by the followi CS2(g) + 3Cl2 (g) AH = -230. kJ

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Q: How much heat is involved when 68.0 g of N2 are reacted in the reaction:
2N2(g) + 5O2(g) + 2H2O(l) →…

A: Given, the chemical reaction,2N2(g)+5O2(g)+2H2O(l)→4HNO3(aq)   ; ∆H =-256 kJamount of heat evolved…

Q: Nitromethane (CH3NO2) burns in air to produce significant amounts of heat. 4 CH3NO2(l) + 3…

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Q: 4. Consider the following equations: 4 PCI; 1. P₁ + 6 Cl₂ → P₁ +50₂ → 2. P₂010 AH₁ = -1226 kJ AH₂ =…

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Q: 5. A student combines 20.00 mL of 0.500 M HCI and 20.00 mL of 0.550 M NaOH in a calorimeter. The…

A: Recall the following expression according to Law of calorimetry…

Q: Write out the chemical reaction whose enthalpy is the heat of formation of gaseous methane, CH4.

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Q: A reaction is performed in water inside of a calorimeter. The mass of solution inside the…

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Q: For a particular process, the system releases 17 kJ of heat and has 21 kJ of work performed on it.…

A: Heat released by a system has a negative sign and work done on the system has a positive sign.

Q: 4. When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose…

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Q: if 11.2 g of H2 (g) (MM = 2.016 g/mol) were to react according to the balanced equation given below,…

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Q: If the energy change for a system is equal to the mass of the substance x the change in temperature…

A: Specific heat is the amount of heat needed for one gram of a substance to increase its temperature…

Q: Consider the reactions: A+B₂-AB2 AH=-20 kJ ½ C₂+ B₂-CB AH = +15 kJ AC4+2 B2 → AB₂+2 C₂B AH°=-15 kJ…

A: 25 kJ/molExplanation:

Q: constant-pressure calorimetry experiment, 27.0 mL of 1.00 M HCIO, was mixed with 27.0 mL of 1.00 M…

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Q: during the combustion of 200 grams of a gaseous mixture of CO and SO2, 1213.75 kJ of heat are…

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Q: Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HC1(aq) 2 MCI, (aq) + 3…

A: Change of enthalpy of reaction is the difference between the total enthalpy of products and total…

Q: kJ

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Q: The standard molar enthalpy of formation of NH3(g) is –45.9 kJ/mol. What is the enthalpy change if…

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Q: How much heat is released if 2.00 moles CF2Cl2 reacts with 70.0 g F2 with a 75.0 percent yield?…

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Q: 6. A 128g piece of Iridium at 95 C is dropped into a 45.2g of water at 17.3 C. The final temp of the…

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Q: In the following reaction, how much heat is generated when 3.21moles of CH4 are burned

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Q: What is the change in internal energy for a system that performs 213 kJ of work on its surroundings…

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Q: When a 6.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: heat for the combustion of sucrose (table sugar, C12H22O11) is -5,647 kJ for

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Q: Use Reaction 1. Determine the mass, in grams, of chlorine gas consumed (with excess H₂) when 1,479.0…

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Q: 25.0 mL of 1.00 M HCl at 24.3°C react with 25.0 mL 1.00 M NAOH in a styrofoam calorimeter whose…

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Q: If a sample of salt is in water in a constant pressure calorimeter with a heat capacity of 35.5 J/℃…

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Q: Consider the reaction.   2Fe2O3⟶4Fe+3O2.    Δ?∘rxn=+824.2 kJ   The formation of 12.0 g of O2…

A: 2Fe2O3 ——> 4Fe + 3O2          Heat = +824.2 kJ Clearly,  this heat is released when 3 moles of O2…

Q: In a calorimetry experiment similar to the one performed today, a student used 50.0 mL of 1.0 M NaOH…

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Q: If 106 kJ of heat are evolved when the reaction described below is carried out, the mass of HCI gas…

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Q: The standard enthalpy change for the following reaction is 940 kJ at 298 K. TiO,(s) Ti(s) +02(g) AH°…

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