Alcohols for use as biofuels can be produced from glucose that is obtained from starch and cellulose in plants. Use the information below to determine the temperature range, if any, at which this reaction is spontaneous. C6H12O6(s) ---> 2CH3CH2OH(l) + 2CO2(g) Compound               ΔHf (kJ/mol)          S[J/(mol*k)] Glucose (s)                 -1274                          212 Ethanol (l)                   -278                            161 Carbon dioxide (g)      -394                            214

Q: Which of these reactions is expected to be spontaneous at all temperature?          (A

A: We have to tell which reactions is expected to be spontaneous at all temperature

Q: Below what temperature does the following reaction become spontaneous? FeO(s) + CO(g) → CO2(g) +…

A:

Q: 14) Consider the sublimation of carbon dioxide (dry ice) is spontaneous under standard conditions.…

A: Given reaction is :  CO2 (s) <-----------> CO2 (g) , ∆G0rxn = -18.7 KJ/mole or -18700 J/mole…

Q: Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶…

A: For a reaction to be spontaneous ,    should be negative Hence  value of should be greater than ,

Q: Here is the reaction of carbon monoxide and hydrogen to form gaseous methanol at 298 K. (a)…

A: (a) ∆S° = -219.2 J/K (b) Sign of ∆S° = -ve (c) ∆H° = -90.5 kJ (d) ∆G° = -ve ( spontaneous reaction )

Q: which of the following reaction is spontaneous at 25c when each of the reactants and products are in…

A: The objective of the question is to determine whether the given reaction is spontaneous at 25°C when…

Q: For a particular chemical reaction DH = 6.8 kJ and DS = –29 J/K. Under what temperature condition is…

A: Gibbs Helmholtz Equation: Is the equation denoted by,…

Q: For the reaction2CO(g) + 2NO(g)2CO2(g) + N2(g)ΔH° = -746.6 kJ and ΔS° = -198.0 J/KThe maximum amount…

A: The given balanced equation can be expressed as: Calculate the standard free energy by using the…

Q: FeO

A: ∆H°rxn = [ ∆H°f(Fe2O3) ] - [ ∆H°f(FeO) + ∆H°f(Fe) + ∆H°f(O2) ]  ∆H°rxn = [ -822.16 kJmol-1 ] - […

Q: “Thermite” reactions have been used for welding metal parts such as railway rails and in metal…

A:

Q: Hexafluorobenzene (C6F6) has an enthalpy of vaporization of 31.7 kJ/mol at its boiling point…

A: Given  Enthalpy of vaporization ( ∆Hvap) = 31.7 KJ/mole 1 KJ       = 1000 Joule  31.7 KJ  = 31.7 ×…

Q: Use the thermodynamic information below to determine the free energy change (△ Go ) for the…

A: Given chemical reaction: SiO2(s)+4HF(aq)→SiF4(g)+2H2O(l) We need to calculate the free energy change…

Q: Is the following reaction spontaneous at room temperature (25.0 °C) ? 2 H2S(g) + 3 O2(g) 2 SO2(g) +…

A: Interpretation: The given reaction is spontaneous at room temperature or not is to be determined. At…

Q: Calculate the entropy change (in J/K) of the universe (AS universe) that takes place when phosphene…

A:

Q: The reaction of methane with water to form carbon dioxide and hydrogen is non-spontaneous at 298 K.…

A: Concept - When a reaction is spontaneous, the change in standard gibbs free energy become zero. as…

Q: Consider the following reaction and its associated ΔHrxn. CH3OH=CO+2H2,   ΔHrxn = 90.70 kJ/mol…

A:

Q: When heated, CaCO, decomposes into CaO and CO₂ according to the following equation: CaCO,(s)=CaO(s)+…

A: Given,CaCO3 (aq) + CO2 (g)

Q: Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide:2 N2(g) +…

A: (a) Given data contains, The enthalpy of reaction is +163.2kJ. Temperature is…

Q: 1: Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → →…

A:

Q: value for ΔrS°, in units of J K-1‑mol-1 at 25 °C?

A:

Q: For the reaction C6H6 (l) + 3 H2 (g)  -->  C6H12 (l)        ΔHo = –206.7 kJ/mol What statement is…

A: We know that   ΔGo =  ΔHo - T ΔSo and for a reaction to be spontaneous  ΔGo should be negative.

Q: Which reaction is spontaneous only at a lower temperature? O 2H₂SO (1) 2SO₂(g) + 2H₂O(g) + O₂(g)…

A: If ΔG > O means reaction is non-spontaneousIf ΔG< O means reaction is spontaneousIf ΔG = O…

Q: Which reaction below is spontaneous at low temperatures and nonspontaneous at high temperatures? O…

A:

Q: Consider the following reaction.  Use the information here to determine the value of ΔSsurr at 355…

A:

Q: Which reaction(s) will be spontaneous at all temperatures? : 4NH3(g) + O2(g) → 2N2(g) + 6H2O(g) ΔrH…

A: For a chemical reaction to be spontaneous, Gibbs free energy, ∆rG should be negative. ∆rG is…

Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH (g) → 3 Ni(s) + N,(g) + 3 H̟O(g) kJ If AG°…

A:

Q: Determine if the decomposition of potassium chlorate is spontaneous or not. Supply all the missing…

A:

Q: Is this reaction spontaneous? Why or Why not?  CaC2(s) + 2H2O(l) ---> C2H2(g)  + Ca(OH)2(s) Delta…

A: The entropy change, ΔSrxn, for the reaction is; ∆Srxn=∆Sproduct-∆Sreactant=83.4 J mol-1K-1+200.8 J…

Q: Which of the following statements accurately describes the spontaneity of the reaction below?…

A:

Q: Calculate the temperature, in Kelvins, at which the decomposition of calcium carbonate becomes…

A: Given:The reaction is

Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) →…

A:

Q: What is the temperature at which the reaction below becomes spontaneous, if the standard entropies…

A:

Q: Consider the following reaction: C(graphite) + 1/2 O2(g) → CO(g) Is it spontaneous under standard…

A: When change in total entropy is positive, the process is spontaneous in nature.

Q: For a particular chemical reaction H = 6.8 kJ and S = –29 J/K. Under what temperature condition is…

A: The Gibbs free energy change for a reaction is negative for a spontaneous reaction and is zero for a…

Q: Consider the following reaction: CaCO 3(s) CaO (g) +CO 2(g) For this reaction, delta S = +158.9…

A: For a spontaneous reaction, deltaG should be negative. From the given delta H and delta S values,…