If a reaction produces fewer gas molecules than it consumes, ΔSº <0. True or False

Q: The specific heat capacity of water (l) is 1.18 J/g∙℃. What is the molar specific heat capacity of…

A: Given:specific heat capacity of water (l) = 1.18 J/g∙℃.molar mass of water = 18.01 g/mol.

Q: What is the change in temperature if 1 kilogram of sodium chloride is heated to produce 859.0 J of…

A: Given,  Mass of sodium Chloride, m = 1 kg = 1000 g  Heat, q = 859.0 J Specific heat of NaCl, c =…

Q: What is the change in enthalpy when 9.00 mol of sulfur trioxide decomposes to sulfur dioxide and…

A: Given reaction 2SO2(g) + O2(g) → 2SO3(g); ΔH° = 198 kJ We need reaction 2SO3 → 2SO2(g) + O2(g) So,…

Q: Consider the following reactions: 3C(s) +4H,(g)→C;H,(g) AH° =-103.8kJ C(s) +0,(g)→ CO,(g) AH'…

A: Hess’s law- Change in enthalpy for a reaction is independent on path or steps followed by reaction.…

Q: 10. Explain enthalpy, entropy, and internal energy.

A: Enthalpy:-Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy…

Q: A 5.00 grams of LiOH is dissolved in 100.0 grams of water in a perfect calorimeter. Calculate the…

A: Given data,  Mass of LiOH = 5.00 g  Mass of water = 100.0 g  LiOH(s) --&gt; Li+(aq) + OH-(aq) , ∆H…

Q: If 117.4 g of copper at 100.0 ℃ is added to 26.7 grams of water at 25.7 ℃, what is the final…

A: Given , 117.4 g of copper at 100.0 ℃ is added to 26.7 grams of water at 25.7 ℃

Q: Zinc metal reacts with HCl according to the balanced equation: Zn + 2HCl à ZnCl2 + H2 When 0.103 g…

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Q: Use the information provided below to compute AGran () for the reaction: CO(g) C(s) +02 (9) C(s) +…

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Q: What mass of butane in grams is necessary to produce 1.5 * 103 kJ of heat? What mass of CO2 is…

A: The mass of butane (in grams) and the mass of carbon dioxide produced has to be calculated. Given…

Q: Elemental iron is used in heat packs and the reaction can be represented as: 4 Fe(s) +3 O2(g) → 2…

A: When enthalpy is negative that means reaction is exothermic reaction

Q: True or False? Because a state function depends on the current equilibrium of the system, a set of…

A: True.

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: 3.88 g of solid ammonium nitrate dissolves in 60.0 g of distilled water in a coffee-cup calorimeter.…

A: Given that:  Mass of ammonium nitrate given = 3.88g Mass of water = 60.0grams Initial temperature of…

Q: give 2 examples of enthalpy, entropy, and Gibbs free energy.

A: Examples of enthalpy, entropy, and Gibbs free energy are given below

Q: Given the chemical reaction: CHale) +5 0,g)→3 CO,) +4 H,OG) AH = -2044 kJ How much heat would be…

A: When hydrocarbons are combusted, then the large amount of heat is produced which is known as…

Q: → 2 NO(g) ► 2 N2(g) + O2(g) AH = +180.7 kJ NO(g) + O,(g) → 2 NO,(g) AH = -113.1 kJ 2 N;O(g) → 2…

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Q: Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction:…

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Q: A 0.8563 g sample of C14H30 (molar mass = 198.394 g/mol) undergoes combustion in a bomb calorimeter…

A: The given data contains, mass of sample = 0.8563 gSpecific heat capacity =63.92 kJ/°CTemperature…

Q: When 4.51 g of a solid mixture composed of NH¼CI and CaCI2 was dissolved in 100.0 mL of water, the…

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Q: 8.) Determine AG°rxn using the following information. (assume 298 K) H2(g) + CO(g) → CH2O(g)…

A: This question is related to Gibbs energy formula. Gibbs free energy is a quantity that is used to…

Q: A 100.0-g sample of cold water at 20.0oC is added to a warm water of unknown mass at 65.0oC. If the…

A: Given information is as follows: The mass of sample of cold water = 100 g The initial temperature of…

Q: Which of the following (with specific heat capacity provided) would show the smallest temperature…

A:

Q: The standard enthalpy changes for the formation of aluminum oxide and iron (III) oxide are: 3 2 Al…

A: Given equations are : 1). 2Al (s) + 32 O2 (g) ---------&gt; Al2O3 (s) , ΔH01 = -1676 KJ  2). 2Fe (s)…

Q: True or false?  For chemical reactions, when ∆G° for the reaction is less than ∆H° for the…

A: False

Q: Hydrogen peroxide decomposes according to the following reaction: H2O2(l) → H2O(l) + 1/2O2(g)…

A: Hydrogen peroxide is a chemical compound with the molecular formula H2O2. It decomposes and forms…

Q: A hot (70°C) lump of metal has a mass of 250 g and a specific heat of 0.25 cal/g°C. John drops the…

A: heat lost by metal = heat gained by water + heatgained by calorimeter . m c T =  m cT + m c T . 250…

Q: What mass of aluminum metal would absorb 250.0 kJ when it melted at its melting point? The molar…

A: One gram of aluminium metal absorbs 396.6 Joule heat.

Q: You are given the following equation for the formation of sulfur trioxide in the reaction below.…

A: Mass of vegetable oil = 1.15 kg = 1150 gm  Heat capacity of vegetable oil (c) = 1.67 J/g°C  Initial…

Q: True or False: Consider the following thermochemical equation: NH4Cl (s)→→ NH4+ (aq) + Cl- (aq)…

A: Ammonium chloride dissolve in water, the enthalpy change of the reaction is given by: NH4Cl (s)→→…

Q: When a 10.0 g metal sample (0.85 J/goC) at 110.oC is placed in an insulated cup of water at 25oC,…

A: According to Law if calorimetry Heat absorbed by a system = heat released by another system Here the…

Q: A bomb calorimetry experiment is performed with xylose, C5H10O5(s) (molar mass = 150.13 g/mol), as…

A:

Q: A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the…

A: Many chemical reactions give off energy. Chemical reactions that release energy are called…

Q: (a) FeCl, NABH., ELOH (b) then H,O* КОН (c) OMe H,0 Br heat (d) NaOCH; heat (e) NBS, AIBN heat (f)…

A:

Q: What is the change in the enthalpy (in kJ) for the complete combustion of 39.0 g of fructose,…

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

Q: Given the thermochemical formation reactions:   1/2 Br2(l) + F2(g) → BrF(g) ∆H˚ = -58. kJ   and…

A: 1/2 Br2(l) + 1/2F2(g)     →   BrF(g)          ∆H1˚ = -58. kJ    ............................(1) 1/2…

Q: 9. Given 2Als) + 3/2 O2(g) → Al2O3(s) AH = -1670 kJ What is AH for the reaction? 2Al2O3(s) → 4Al(s)…

A:

Q: 2. A rubberized, cubic chamber was filled with butane gas and was expanded from 3.0L to 4.5L at a…

A: According to first law of thermodynamics, we have dU = q + w      -----(1) Where, dU is change in…

Q: Explain Enthalpy and Entropy ? Show the Difference between them ?

A: Enthalpy and entropy are the thermodynamic properties of a system. They are one of the most…

Q: A 80.8 g chunk of granite (specific heat: 0.79 J/g°C) is heated to 225.7 °C and dropped into a…

A:

Q: Calculate qrxn for the reaction that occurs when 25.0 mL of 1.00 M HCl are added to 25.0 mL of 1.00…

A: The volume of 1.00 M HCl added to the 25.0 mL of 1.00 M NaOH is 25.0 mL. The initial temperature is…

Q: 4) Which of the following (with specific heat capacity provided) would show the smallest temperature…

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Q: How much heat is released at constant pressure if 12.3 mL of 0.161 M silver nitrate is mixed with…

A: Given,  AgNO3(aq) + KCl(aq)  ➝ AgCl(s) + KNO3(aq) ∆H° = -65.5 kJ Here (-) sign indicate the release…

Q: CaO + H2O ->Ca(OH)2      heat = -64.8kJ/mol, how much heat liberated when 7.15g CaO is dropped into…

A:

Q: The specific heat capacity of water is _____.     (g x °C)/1 cal °C/(g x 1 cal) 1 cal/(g x °C) g/(1…

A: The specific heat capacity denoted by Cp is the amount of energy that must be supplied to 1 unit…

Q: When 5.28 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the…

A:

Q: TRUE OR FALSE  1. It is more convenient to use change in enthalpy, ΔH, as a criterion of…

A: 1. enthalpy and entropy can not be used alone as a spontaneity criterion. Thus, statement one is…

Q: Calculate ΔH°rxn

A:

Q: Mg(s) + 2 H2O(l) ⟶ Mg(OH)2(s) + 2H2(g) | ∆Hrxn = —353.0 kJ/mol Calculate the number of grams of Mg…

A: Mg(s) + 2 H2O(l) ⟶ Mg(OH)2(s) + 2H2(g) | ∆Hrxn = —353.0 kJ/mol  99 mL of water temperature change =…

Q: 50.0mL of 2.2 M HCl is combined with 50.0 mL of 2.0 M NaOH in a coffee-cup calorimeter. Calculate…

A: The formula required to calculate moles is as follows, Molarity = MolesVolume in…