Which of the following statement(s) are true for the reaction I2 (g) 21 (g)? (1) AS is positive (ii) AH is positive (iii) The reaction is spontaneous at any temperature (iv) AS is negative (v) AH is negative

Q: Čonsider the reaction of NO and Cl2 to produce NOC1.a) What is AS°(system) for this reaction and…

A: When NO reacts with Cl2 to form NOCl ;  2NO(g) + Cl2 (g) ==> 2 NOCl (g)

Q: A reaction has AH°=23.7kJ and AS°=54.2J/K. a) Is the reaction exothermic or endothermic? b) Does the…

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Q: Copper Metal is obtained by smelting copper(I) sulfide ores: Cu2S(s) + O2(g) → 2 Cu(s) + SO2(g) Use…

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Q: What do we know is true if a reaction is only spontaneous below 90 °C? A. AS and AH are both…

A: For a reaction to be spontaneous, delta G = negative.  Delta G is given by  Delta G = delta H -…

Q: Determine sign of AS for the following process. KNO3(s) → K*(aq) + NO, (ag) A. O positive B. O…

A: Entropy  It is the degree of randomness . When the randomness increases the change in entropy (∆S)…

Q: Write equations for the oxidation of Fe and of Al. Use ∆Gofto determine whether either process is…

A: Oxidation is loss of electrons while reduction is gain of electrons and they always occur together.…

Q: If AH for a reaction is negative and AS is positive, then the reaction is (a) spontaneous at all…

A: Given : ΔH of the reaction is -ve. And ΔS of the reaction is +ve.

Q: For a certain process at 379 K, AG = +229 kJ and AH=-105 kJ. What is AS for this process?

A: Using Gibbs Free energy equation , we have calculated the value of change in entropy value .

Q: For the following reaction, AH° for the reaction is -206.1 kJ/mol, while AS° is -215 J/K•mol . NO…

A: For the reaction to be spontaneous , we have to see the  value of Gibbs free energy. ∆G = negative (…

Q: What is the sign of ΔS for the reaction  Na2B4O7(s)       2 Na+(aq) + B4O72-(aq) ?

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Q: 5) When could the following reactions be spontaneous (if ever)? AGys = AHays- TASs C. AH is positive…

A: ΔG is the gibbs free energy which decides whether the given reaction is spontaneous or not. ΔG = ΔH…

Q: For the following reaction, AH° for the reaction is -206.1 kJ/mol, while AS° is -215 JK•mol. NO (g)…

A: The reaction given in the question is given as - NO (g) + 1/2 Cl2 (g) → NOCl (g) The standard change…

Q: For the reaction at 298 K, 2NO,(g) =N,O,(g) the values of AH° and AS° are -58.03 kJ and –176.6 J/K,…

A: Standard Gibbs free energy can be expressed as: , we are given the values of Standard enthalpy…

Q: If AH is positive and AS is negative for a reaction, then the reaction is O nonspontaneous at low…

A: For a reaction to be spontaneous ∆G should be negative . We know that  ∆G = ∆H-T∆S

Q: Calculate ΔG° for a reaction for which ΔH°= 20 kJ and ΔS° = 140 J/K at 298 K. Is the reaction…

A: Given  ΔH°= 20 kJ  1 kJ =1000 J ΔH°= 20,000 J ΔS° = 140 J/K T = 298 K  ΔG° = To be determined

Q: Which statement is incorrect? Gibbs free energy, AG, is a state function and when it is negative the…

A: ∆G is  change in Gibbs Free energy .For a process to br spontaneous ∆G should be negative.

Q: Question 20 of 20 Submit A reaction will be spontaneous at all temperatures if. A) AH and AS are…

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Q: 4.) Which statement is correct at constant temperature and pressure? A. All reactions for which…

A: Spontaneity of any system is decided by the value of ΔGsys.

Q: For the reaction of xenon and fluorine gases to form solid XeF4, AH° = -251 kJ and AG° = -121 kJ at…

A: The standard Gibbs energy change of a chemical reaction is defined as the Gibbs energy change that…

Q: For a reaction, the enthalpy change is -210 kJ, the entropy change is -170 J/mol.K and the…

A: We have given that  For a reaction, the enthalpy change is -210 kJ, the entropy change is -170…

Q: 1. What thermodynamie quantity is used to determine whether a chemical reaction will proceed…

A: When a reaction proceed on its own without any external aid, it is called spontaneous reaction.

Q: Under what condition is a reaction with a negative AH and a positive AS spontaneous?

A: Answer: To check the spontaneity of a reaction we have to see the sign of ∆G of the given reaction .…

Q: Consider the reaction below. Using the information provided below, calculate AG°rxn for the reaction…

A: Standard Gibbs free energy of a reaction can be used to determine the spontaneity of the reaction.…

Q: For a certain chemical reaction, ∆H° = -35.4 kJ and ∆S° = -85.5 J>K.Is the reaction spontaneous…

A: For a reaction is given by, ∆G=∆H - T∆S where ∆H is the heat of enthalpy, T is the temperature and…

Q: Without doing a calculation, predict the sign of ΔS for each of the following reactions:

A: Given : We have to predict the sign of entropy.

Q: Which statement is true for the freezing of liquid wa O AH is negative; AS is negative; AG is…

A: Freezing is the process in which liquid converts to solid. So heat is released.  Hence it is…

Q: Calculate AG°rxn (in kJ) for a reaction where AH°= +124 kJ, AS°= +223 J/K, and T = 298 K %3D

A: Given; Enthalpy of the reaction (∆H°) = + 124 kJ Entropy of the reaction (∆S°) = + 223 J/K = + 0.223…

Q: Consider the figure below which shows AG" for a chemical process plotted against absolute…

A: The standard Gibbs free energy of reaction is the Gibbs free energy of a reaction calculated at the…

Q: 11.13 For a certain reaction at 15°C, AH = -10.5 kJ/mol and AS = 30. J/mol•K. Calculate AG for the…

A: From the equation of Gibb's free energy change, we know ∆G = ∆H -T×∆S where   ∆G = Gibb's the free…

Q: Which of the following is true of a spontaneous process? A. O AG and ASuniv are both negative B. OAG…

A: For spontaneous process, ∆Suniv  should be equal to or greater than zero. Hence, ∆Suniv should be…

Q: What is Gibbs free energy, and what is ΔG for a reaction, and what does it mean if ΔG is positive,…

A: Gibbs free energy : It is defined as the maximum reversible non-PV work that can be obtained from…

Q: Which one of the following statements correctly describes the signs of q and w for the following…

A: The reaction containing -ve entropy and accomplishes exothermically that reaction gets driven by…

Q: 8) Calculate AG for a reaction at -12 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: To Solve this problem we will use the formula  ∆G = ∆H - T∆S  Where , ∆G = Gibbs free energy change…

Q: Calculate AG for the following reaction at 25°C. Will the reaction occur (be spontaneous)? How do…

A: ΔG for a reaction is calculated as: ΔG = ΔH-TΔS where T is the temperature in Kelvin   A reaction is…

Q: Calculate AG for a reaction at 85 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: Answer of this question :-

Q: Calculate ∆G° for a reaction for which ∆H° = 24.6 kJ and ∆S° = 132 J/K at 298 K. Is the reaction…

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Q: Use the Standard Thermodynamic Properties table to calculate AH following reaction: B2H6 (g) + 3 02…

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Q: Calculate AG and show that the reaction is spontaneous at 25°C. ΔG° kJ =

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Q: A particular reaction is spontaneous at 450 K. The enthalpy change for the reaction is +34.5 kJ.…

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…

Q: A certain reaction has ∆H ° = +23.7 kJ and ∆S° = +52.4 J>K. Calculate ∆G° for the reaction at 298…

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Q: Which of the following combinations of values for AH and AS for a given process, indicate that the…

A: The change in Gibbs free energy of a system can be expressed in terms of change in entropy and…

Q: The normal freezing point of n-octane (C8H18) is -57 °C.(a) Is the freezing of n-octane an…

A: Given that the freezing point of n-octane is -57 oC.

Q: or a particular reaction, AH = -93.8 kJ and AS = -156.1 J/K. Assuming these values change very…

A: Solution - According to the question - Given - ΔH° = -93.8kJ ΔS° = -156.1J / K = -156.1x 10^-3 kJ /K…

Q: Which of the following sets of conditions must be true for a reaction that is thermodynamically…

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Q: 9. Consider the following reaction: N2O4 (g) → 2NO2 (g) a. Determine the AG° value for the reaction…

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Q: At what temperature, in oC, would the reaction in problem 2 cross the non- spontaneous/spontaneous…

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Q: What is entropy, and what is ΔS for a reaction, and what does it mean if ΔS is positive or negative?

A: Answer  The measurement of randomness is called entropy, entropy…

Q: For the reaction H2(g) + C,H,(g) →C;H,(g) AG° =-103.0 kJ and AS° =-120.7 J/K at 282 K and 1 atm. The…

A: Given reaction is : H2(g)  +  C2H4(g)  →  C2H6(g)∆G°=-103.0 kJ and ∆S°=-120.7 J/K=-0.1207…