2.84 For each of the following reactions, decide if (i) tendency toward minimum energy favors reactants or products. i od (ii) tendency toward maximum randomness favors re- actants or products. idel (a) 2A12O3 (s) 4Al (s) + 302 (g) W () (b) CaO (s) + H2O (g) Ca(OH)2 (s) (c) 2C1 (g) C2 (g) (d) CO(NH2)2 (aq) + H2O (1) Z CO2 (g) + 2NH3 (g) AH = +28.4 kkal %3D (e) N204 (g) 2 2NO2 (g) AH = +14 kkål %3D (f) 203 (g) 302 (g) AH= -68 kkal (g) 2NH3 (g) N2 (g) + 3H2 (g) AH = +22 kkal %3D

Q: 2. Was energy absorbed or released in each of the observed reactions? Explain your reasoning.

A: As most of the above process result in production of fire. It  Means reactant reactant are at High…

Q: Iron oxide reacts with aluminum in an exothermic reaction. Fe2O3(s) + 2 Al(s) → 2 Fe(s) + Al2O3(s)…

A: The amount of energy released or absorbed in a chemical reaction is termed as the change in enthalpy…

Q: 2. The following table shows the probability distribution of the number of watches that a jeweller…

A:

Q: Given the reactions, X(s) + 0,(g) → XO(s) ΔΗ-861.9 kJ XCO,(s) → XO(s) + CO,(g) ΔΗ+339.3 J what is AH…

A:

Q: A large bottle containing 883g of water at 4°C is removed from the refrigerator. How many kilojoules…

A: Heat, Q = cm∆T c is specific heat capacity of substance m is mass of substance ∆T = change in…

Q: 7. Which statement is supported by the chemical equation Zn + 2HCI → H2 + ZnCl2 + energy? A. The…

A: 1. Enthalpy of any reaction is defined as the change in total energy, when reactant converts into…

Q: 49. CH,CO,Na forms an acidic solution when dissolved in water CH,CO', ions in aqueous solution can…

A: Chemical compounds are acidic or basic. Acidic solutions have a pH (power of hydrogen) between 0 to…

Q: How much energy is evolved during the reaction of 48.7 g of Al according  to the reaction below?…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: References] The reusable booster rockets of the space shuttle use a mixture of aluminum and ammonium…

A: The enthalpy change is given by  Here Enthalpy change of the reaction is the sum of heat of…

Q: Which reaction has Hrxn equal to Hf?  Explain. How much energy would be released by the combustion…

A: Enthalpy of Reaction (∆Hrxn):-  It is the energy change which occurs during a reaction. Enthalpy of…

Q: Write the law for this reaction and explain how it is determined SO2CL2 ->SO2 + CL2

A:

Q: A(s) + B(s) -> D(g) + heat The reaction shown above is -

A:

Q: For a chemical reaction, wNa₂S + xHCl → yNaCl + zH₂S, what would be the values of w, x, y, and z so…

A: The reaction given is, => Na2S + HCl → NaCl + H2S

Q: 42. What is the reaction enthalpy of the S8+8H28H2S reaction? The binding enthalpy is S-S 260, H-S…

A:

Q: 6. Reaction: 4 NO(g) + 6 H2O(1) - 4 NH3 (g) + 5 O2(g) AHxn° = ( +) a. Based on the probability of…

A: Answer:

Q: 17-When 2.00 grams of methane is burned in the calorimeter bomb, the calorimeter temperature rises…

A: The combustion of methane is as follows: CH4(g)+2O2(g) → CO2(g)+2H2O(l)

Q: What is the energy change when the temperature of 13.3 grams of solid copper is decreased from 37.5…

A: The energy change or heat required to raise the temperature of a substance can be expressed as :

Q: Fe2O3(s) + 3CO(s) → 2Fe(s) + 3CO2(g) ΔH = -28.0 kJ 3Fe(s) + 4CO2(s) → Fe3O4(s) + 4CO(g) ΔH = +12.5…

A: Enthalpy of reaction 1 -  ∆H = -28.0 KJ  Enthalpy of reaction 2 -  ∆H = +12.5 KJ  Enthalpy for final…

Q: Transition State Ea Reaction Coordinate

A:

Q: A chemist measures the energy change AH during the following reaction: C;Hg(9)+50,(9) → 3…

A: Answer: exothermic If heat of Reaction (∆H = negative value) then it is said to be heat released and…

Q: Question 12

A: Change in enthalpy of a reaction is: Change in enthalpy for the given chemical reaction is:

Q: 23. Given the following reactions Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) AH = -28.0 kJ 3Fe(s) +…

A: The given reactions are: Fe2O3s+3COg→2Fes+3CO2g     ∆H=-28.0 kJ3Fes+4CO2g→4COg+Fe3O4s     ∆H=+12.5…

Q: Upon heating, baking soda decomposes as follows, creating the holes in baked bread: 2NaHCO3​(s) -->…

A: 39.0 g of NaHCO3 decomposes to produce energy of -30.0 kJ39.0 g of NaHCO3=39.0 g of NaHCO3×1 mole of…

Q: What is the kinetic energy in kilojoules of a snail weighing 0.002981 kg and moving at a velocity of…

A: weight of snail (m) = 0.002981kg velocity (v) = 16.55 km/y =0.00052479706 = 5.25 x 10-4 m/s…

Q: A chemist measures the energy change AH during the following reaction: C,Hg(9)+ 50,(9) → 3…

A: To solve this problem we will use the given balanced chemical equation .  Since we know that when…

Q: A chemist measures the energy change AH during the following reaction: 2 H,0(1) → 2 H2(9)+O2(g)…

A: At a particular temperature, amount of heat energy released or absorbed when a chemical reaction is…

Q: When 2 moles of HBr(g) react with Cl2(g) to form HCl(g) and Br2(g) according to the following…

A: The reaction taking place is given as, => 2 HBr (g) + Cl2 (g) → 2 HCl (g) + Br2 (g)

Q: A large bottle containing 883 g of water at 4 °C is removed from the refrigerator. How many…

A: Given that,Mass of water is 883 g.The initial temperature is 4˚C.The final temperature is 22˚C.It is…

Q: Given: 4 NH3 (g) + 3 O2 (g) → 2 N2 (g) + 6 H2O (l)  ΔH = -1500 kJ How many grams of ammonia (MM =…

A: Mass = number of mols x molar mass Given balanced equation suggests that: 1500 kJ energy is released…

Q: 4. The energy of reaction of benzoic acid is AUo =-26.41 kJ g'. If 1.019 g of benzoic acid was used,…

A: Given,  Energy of reaction of benzoic acid = ΔUrxn = -26.41 KJ.g-1  Mass of benzoic acid = 1.019 g…

Q: (aq)2(8) 10. Given the three reactions: Ca) + 2H,O Ca" + 20H + 431 kJ/mol (ag) CaO) + H,O Ca, (aq) +…

A: Note: As per our guidelines, we are supposed to answer only the first question when multiple…

Q: 3. The equation for thecombustion of gaseous methanol is: 2 CH;OH (g) + 3 O2 (g) → 2 CO2 (g) + A.…

A:

Q: 15 10 Extent of reaction (a) What is the Enthalpy of the above energy curve? O 30 KJ O20 KJ 43 KJ 14…

A: In the given energy coordination diagram, A act as reactant, B act as intermediate and C act as…

Q: Consider the following reaction at 25 °C: 3 Ni(s) + N,(g) + 3 H,O(g) → 3 NiO(s) + 2 NH,(g) Given the…

A:

Q: Equilin is an estrogen from horses with the chemical name 3-hydroxyestra- 1,3,5,7-tetraen-17-one.…

A: The amount of Carbon, Oxygen and Hydrogen in the compound is determined as given,

Q: Arsenic trichloride can be prepared through the reaction of arsenious oxide with concentrated…

A:

Q: Octane is a bydrocarbon that is a component of gasoline fuel. The following is the chemical equation…

A: Combustion Reaction is a reaction of a hydrocarbon in presence of oxygen that releases carbon…

Q: What is the energy change when the temperature of 14.5 grams of solid tungsten is decreased from…

A:

Q: Chapter 5: Enthalpy of a Reaction.. I04/08/20 CORE out of 21 How would you combine reactions A-C,…

A:

Q: Calculate the energy released (in the form of heat) when 57.0 g of 1-pentanol reacts with oxygen

A: Recall the reaction for combustion of 1-pentanol CH3CH2CH2CH2CH2OH + 8O2 → 5CO2+ 6H2O   ,∆H=-3330.91…

Q: Find the AH of the following reaction: N2(g) + O>(g) + Cl½(8) 2NOCI(g) given the following…

A: (i) 2 NOCl (g)  ----> N2 (g)  +  O2 (g)  + Cl2 (g)   ; ∆H1  (ii) 1/2 N2 (g)  + 1/2 O2 (g)…

Q: Calculate the AH°rxn for the combustion of methane using the given AH°r. CH4 (g) + 202 (g) 2H2O (1)…

A:

Q: MISSED THIS? Read Section 7.6 (Pages 281 - 284); Watch IWE 7.7. Nitromethane (CH,NO2) burns in air…

A: Number of moles of nitromethane = 44.725 or 44.73 Heat produced by 44.725 moles of nitromethane is =…

Q: ICottizO, o +6027 LoCOz+ Lot2O+362,5 KJ Find the amount of heat released when 18.9 grams of carbon…

A:

Q: Does a negative  ΔHᵣₓₙ mean that the heat of reaction can be thought of as a reactant or as a…

A: Enthalpy is a thermodynamic property. It is an extensive property. It is denoted by H. It is sum of…

Q: Question 13

A: Given: Specific heat of CaCO3 = 0.82 J/g⋅∘C Heat energy absorbs = 40.3 J Initial temperature (T1) =…

Q: Given the following information, AHº (A2B(g)) = -225 KJ/mol AHº (BC(g)) = -160 KJ/mol AHº (AC(g)) =…

A:

Q: 7. Calculate AH° for the reaction: Na,0(s) + SO;(g) → Na,SO,(g) given the following information.Show…

A: see the written solution.

Q: Question 4

A: The given information are recorded as follows,