Dissolution of Sodium Hydroxide mass of water: 200 g initial temperature of water: 20°C final temperature of water: 26.49°C qwater: 5430.832 J qdissolution: 5566.6028 J   mass of solid NaOH: 5.0 g moles of solid NaOH: 0.125 mol ΔH of NaOH dissolution: -44.53 kJ/mol  If you touch the sides of a beaker containing NaOH being dissolved, will it feel warm or cold to touch? Explain.

Q: 6. Consider the reaction: CH,OH(/) + 30:(g) If the reaction mixture expands under constant pressure…

A:

Q: Calculate the change in the Gibbs free energy (ΔGorxn) in J for the decomposition of carbon…

A:

Q: Given the AH°f, calculate the AH°xn for the formation of diamond from graphite. AH°; (C, graphite) =…

A:

Q: For the reaction: CS2(g) + 2 H2S(g) CH4(g) + 4S(s) AH = -175 kJ and AS = - 495J/K a. At what…

A: For a reaction to occur spontaneously, delta G should be less than 0

Q: When 13.8 ml of 0.870 M lead(II) nitrate reacts with 90.0 ml of 0.777 M sodium chloride, 0.579 kJ of…

A: Using mole-mole analysis and thermochemistry concepts we can solve this question.

Q: Decomposition of CaCO3(s) into CaO(s) and CO2(g), ΔHᵒ 25ᵒ = 178 kJ

A: Decomposition reaction CaCO3 (s)    →              CaO(s)  +  CO2(g)        ΔH = +178 kJ…

Q: An ice cube at 0 Celcius melts when placed inside a room at 22 Celcius. Based on the concepts of…

A: Melting of ice requires energy to melt. So it is an endothermic process. The process in which energy…

Q: Use the 2 equations provided below to calculate the delta H of reaction for the formation of solid…

A:

Q: For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl2), perform the…

A: Given,ΔHo = −220. kJ/molΔGo = −206 kJ/molTemperature = 298 K

Q: Consider the decomposition of liquid benzene, C6H6(1), to gaseous acetylene, C2H2(g): 1 C6H6) ►…

A: 13C6H6(l) → C2H2(g)                        ∆H = +210 kJ 33C6H6(l) → 3 C2H2(g)                   3×…

Q: Consider the reaction: 2KClO3(s)~2KCl(s)+3O2(g) At a standard state, △G for the reaction is -35kJ.…

A: The value of gibbs free energy change helps us to find if the reaction at a particular temperature…

Q: Consider the oxidation of carbon monoxide:CO(g)+1/2 O₂(g) →CO₂(g) (a) Predict the signs of ΔS° and…

A: The standard Gibbs free energy of a compound is the free energy change of a chemical reaction…

Q: Above what temperature does the following reaction become nonspontaneous? 2 H2S(g) +3 02(g) - 2…

A: Given, The balanced chemical equation is given below, 2H2O(g)+3O2(g)→2SO2(g)+2H2O(g) Then, ∆H=-1036…

Q: Above what temperature does the following reaction become nonspontaneous? N204(9) + 4 H2(g) → N2(9)…

A:

Q: When a 3.32 g sample of NaOH(s) (Drano) was dissolved in a calorimeter containing 100.0 g of water,…

A: Given : Mass of NaOH dissolved = 3.32 g Initial temperature of solution = 22.8 oC Final temperature…

Q: Using enthalpies of formation (See the Supplemental Data), calculate ΔH° (in kJ) for the following…

A:

Q: What do you expect for the sign of ∆S in a chemical reaction in which 2 mol of gaseous reactants are…

A: Entropy is the measure of the randomness in the molecules or atoms. The entropy of gases is more…

Q: 2Al(s) + 3Cl2(g) → 2AlCl3(s) Find the change in internal energy for this reaction. Enter in kJ.

A: The given equation is:

Q: Q2.) For a particular reaction, ΔH = -32 kJ and ΔS = -90 J/K . Assume that ΔH and ΔS do not vary…

A: Given : ΔH = -32 kJ  ΔS = -90 J/K 1) To calculate Temperature at which  ΔG=0  ΔG = ΔH  - TΔS ΔG=0…

Q: The dissolution of ammonium nitrate occurs spontaneously in water. As NH4NO3 dissolves, the…

A:

Q: Above what temperature does the following reaction become nonspontaneous?         2 H2S(g) + 3…

A:

Q: Hydrogen peroxide (H2O2) decomposes to water and oxygen at constant pressure by the following…

A: Since from the given reaction we can say that when 2 moles (2 because in reaction coefficient of…

Q: What is the change in internal energy (in kJ/mol) of the given reaction if 2 moles of sulfur dioxide…

A:

Q: The fat, glyceryl trioleate (C57H10406), is metabolized via the following reaction. Given the…

A:

Q: Two systems, each composed of two particles represented by circles, have 20 J of total energy. Which…

A: Given data : Two systems, each compound of two particles , represented by the circkes have 20 J of…

Q: In the late eighteenth century Priestley prepared ammonia by reacting HNO3(g) with hydrogen gas. The…

A: We are given the balanced chemical equation for the preparation of NH3 as follows: HNO3(g) +…

Q: For the oxidation of iron to form iron(III) oxide: 4Fe(s) + 3O2(g) ⟷⟷ 2Fe2O3(s)…

A: ΔSo = –549.73 J∙K–1 T = 298K ΔH = –824.2 kJ∙mol–1 = -824200 Jmol-1

Q: 2NH3(g) + 3O2(g) + 2CH4(g) → 2HCN(g) + 6H2O(g) Find the change in internal energy for this reaction.…

A: Given chemical reaction isChange in no. of moles (Δng) = sum of moles of product -the sum of moles…

Q: Given the following chemical reaction occurring in a 2.00 L container: A (g) + 2 B(s) ↔ 4 C(g) + 3…

A:

Q: 1. Iron(II) oxide (FeO) is used in cosmetics and in tattoo inks as a dye. Iron(II) oxide reacts with…

A:

Q: The fat, glyceryl trioleate (C57H10406), is metabolized via the following reaction. Given the…

A: Given: Mass of fat i.e C57H104O6 reacting = 1.00 g And the balanced reaction taking place is given…

Q: Without doing any calculations, determine the sign of ΔSsys for each chemical reaction.a. Mg(s) +…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: CaCOg(s) -> CaO(s) +CO2 AH=177.8 kJ/mol What is the change in the internal energy for the reaction…

A:

Q: A mathematical interpretation of First Law of Thermodynamics is: O a. Q=ART O b. Q=AU + A C. Q=RT

A: Given  First law of thermodynamics

Q: which of the following is a process with a negative △s? CaCo3---CaO(s) + CO2 (g) H2O (l)----H2O…

A:

Q: Given the data in the table below, AH°rxn for the reaction 2Ag25 (s) + 02 (g) - 2A820 (s) 25 (s) kJ.…

A: The reaction given is 2 Ag2S (s) + O2 (g) -------> 2 Ag2O (s) + 2 S (s)

Q: For the reaction given below, AH--1516 kJ at 25 C and AS--432.8 J/K at 25 C, This reaction is…

A:

Q: 20) Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction:…

A:

Q: Coal can be converted to methane, a chief component of natural gas, according to the following…

A: Use relation  ∆G= ∆H-T∆S And ∆G= -2.303RTlogK ∆G=23943.95kj/mol Kc= 6.3×10-5

Q: Predict the sign of entropy. Write P if it is positive and N for negative. • sugar dissolving in tea…

A: Entropy is defined as the randomness of the system.

Q: Using the provided table, determine the enthalpy for the reaction 2 K(s) + 2 H20(1) → 2 KOH (aq) +…

A:

Q: For the reaction: N2(g) + 2O2(g) + 16.2 kJ ➜ 2 NO2(g) As nitrogen reacts with oxygen, the heat of…

A: Nitrogen dioxide = N2O Heat of formation of N2 = 0 kJ Heat of formation of O2 = 0 kJ If heat is…

Q: For the reaction 2 A(g) → A2(g), Q = -20.00 kJ for the formation of one mole of A2(g) at constant…

A: Given data: The reaction is- 2 A(g) → A2(g), Q = -20.00 kJ  Temperature = 25.00◦C

Q: The value of ΔS° for the formation of calcium chloride from its constituent elements,            Ca…

A: Entropy is the randomness of particles.

Q: n the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon…

A: Enthalpy change of reaction  ∆ H = - 890.0 kJ / mol Mass of methane = 1.80 g  We need to find heat…

Q: Determine the AH for the overall reaction based on the three-step thermochemical processes below:…

A: The steps of the reaction given are,

Q: Consider the reaction. 2 Fe, O, 4 Fe + 30, = +824.2 kJ The formation of 84.0 g of Fe results in O…

A: Recall the given reaction,  2 Fe2O3 ------>  4 Fe  +  3 O2           ∆Hrxn = + 824.2 KJ We have…

Q: (Q65) Indicate all of the following processes that would result in an increase in entropy: Water…

A:

Q: The dissolution of ammonium nitrate occurs spontaneously in water. As NH4NO3 dissolves, the…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…