All of the following have the free energy of formation value zero except: a) Fe(s)      b)   N2(g)      c)    Na(s)        d)    Br(g)          e)     Ne(g)

Q: Determine which of the following has the highest entropy: He(g) Ne(g) Ar(g) Kr(g)

A: The entropy depends upon following factors . (1) Temperature : On increasing temperature entropy…

Q: Calculate the free-energy change of the following reaction at 410°C and standard pressure. Values in…

A: In thermodynamics, Gibbs free energy is a thermodynamic potential that can be used to calculate…

Q: What is the main reason why ΔG or change in free energy is important for determining the spontaneity…

A: ∆G° is the Gibbs free energy which tells about the spontaneity of the reaction.  If ∆G° = +ve…

Q: The free energy of formation of one mole of compound refers to a particular chemical equation. For…

A: The standard Gibbs free energy of forming Gf0 of a compound is the change of Gibbs free energy  in…

Q: 36. Consider a reaction with the following thermodynamic properties. AH = 77.7 kJ AS° = -35.7 J/(K •…

A: The change in enthalpy, entropy and free energy are related by the formula ∆G = ∆H - T∆S The…

Q: Answer the following questions to the best of your knowledge. a. Why the Gibb’s free energy is such…

A: A state function is the property of the system that depends only on the state of the system. It…

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: The standard free energy of formation, AG; , of a substance is the free energy change for the…

A:

Q: Consider the reaction:            H2S(g)  +  SO2(g)   -->   3S(g)  +  2H2O(l) for which ΔH is -233…

A: GIVEN:            H2S(g)  +  SO2(g)   -->   3S(g)  +  2H2O(l) ΔH =-233 kJ  ΔS = -424 J/K

Q: 9. Use the standard free energy of formation data to determine the free energy change for the…

A: Balanced the equation and determine the free energy change for that reaction also identify the…

Q: Use Appendix C in your textbook to answer the following question. Consider the following reaction.…

A: The value of standard Gibbs energy change of reactants and products from appendix C -  COCl2 g =-…

Q: Which distribution of six particles into three interconnected boxes has the highest entropy? a) b)…

A: Entropy: It is the thermodynamic parameter that is used to measure the randomness that exists in a…

Q: From the following enthalpy and entropy values predict which of reactions I, II, and III would be…

A: For the reaction to be spontaneous , the value of Gibbs free energy must be negative ∆G < 0 (…

Q: When the environment is contaminated by a toxic or potentially toxic substance the substance tends…

A: It is stated by second law of thermodynamics, that entropy of universe gets increased in a…

Q: A reaction has values of AH and AS which are both positive. The reaction * Is spontaneous O…

A: When ∆H and ∆S both are positive then reaction is ---

Q: Which is true for the endothermic reaction 2 SO3(g) → 2 SO,(g) + 02(g)? A) Spontaneous at all T B)…

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

Q: The formation ½ A, + 2 B, + C --> CAB, has an enthalpy of formation of -104 kJ and a change in…

A: Consider the given reaction as:  12A2+2B2+C→CAB4 The free energy change of the given reaction can be…

Q: Consider the reaction:CO(g) + 3H2(g)CH4(g) + H2O(g)Using standard thermodynamic data at 298K,…

A: Given reaction:

Q: Calculate the standard free energy change, AG°, for the following reactions at the temperature giv…

A: 17) The reaction given is  => Ca (s) + 2 H2SO4 (l) -------> CaSO4 (s) + SO2 (g) + 2 H2O (l)…

Q: Consider the reaction CO(g) + Cl2(g)COCl2(g) Use the standard thermodynamic data in the tables…

A: The question is based on the concept of chemical thermodynamics. We have to calculate Gibbs free…

Q: A spontaneous reaction is spontaneous in one direction. O True O False

A: True.  Spontaneous reactions are uni directional.

Q: 8. Calculate the free energy of reaction for: D+F G+M G+C→ A + B AG° = +277 kJ %3D using the…

A:

Q: If H=-180kJ/mol and S=45J/k, then the reaction will be… a)      Spontaneous at all temperatures b)…

A: Reaction spontaneity ∆H ∆S reaction spontaneity + value - value non spontaneous at all…

Q: Consider the reaction 4HCl(g) + O2(g) -----> 2H2O(g) + 2Cl2(g) Using the standard thermodynamic…

A: Given pressure of each gas = 14.43 mmHg

Q: For a certain process,ΔH° = -35.4 kJ and ΔS° = -45.1 J/K. Calculate ΔG° for this process and…

A:

Q: Consider the following reaction at 25 °C: 3 Ni(s) + N₂(g) + 3 H₂O(g) → 3 NiO(s) + 2 NH₃(g) If ∆H° =…

A: We are having the value of ∆H° = -85.7 kJ/mol and ∆S° = -348.3 J/mol.K We have to calculate the…

Q: Consider the following reaction; A(g) + B(s) - C(g) + D(g); AH = -164.1 kJ; AG = -170.1 kJ at 298 K…

A: The reaction taking place is given as, => A (g) + B (s) -----> C (g) + D (g)            ΔHo =…

Q: Why is free energy “free”? >

A: Free energy is denoted by the energy free to do work in a system.The various thermodynamic functions…

Q: What is the standard free energy change, A°G, for the following reaction at 298K? C;H,OH(1) + 30:(g)…

A: Consider the given reaction is as follows; C2H5OH l   +   3 O2 g    ⇄    2 CO2 g    +    3 H2O g The…

Q: For the reaction H2(g) + S(s) --> H2S(g), ΔH° = -20.2 kJ/mol and ΔS° = +43.1 J/K·mol. Which of…

A: We know that the temperature in the Gibbs free energy equation is the Kelvin temperature. So when…

Q: The following reaction is spontaneous at room temperature.

A: Since we know that a spontaneous reaction is the reaction which occurs on it own without any outside…

Q: The process of iron being oxidized to iron(II) oxide (rust) is spontaneous. Which of these…

A: The true statement has to be given,

Q: The change in free energy enables us to determine whether a reaction will proceed spontaneously. How…

A: Free energy is the net energy that can be used to do maximum work in a closed system . Gibbs free…

Q: °C, the free energy of formation of gaseous water is -229 KJ/mole. Calculate ΔG (in KJ) for the…

A:

Q: Calculate the free energy change, AG°, for the following reaction, in kJ/mol. Report your answer to…

A: We will calculate ∆G° for the reaction

Q: hermochemistry Assessment 11.9: Question: The standard free energy of formation of solid sodium…

A: Given that, 2Na(s) + Br2 (g)  →2NaBr (s)     ∆G∘f = -347 KJ/mole Then,  When solid sodium bromide…

Q: Which of the following are spontaneous? a. a house being built b.a satelite is launched into orbit…

A: The processes that occur on their own to attain a more stable state without any external efforts are…

Q: Use the standard free energy of formation data to determine the free energy change for each of the…

A: Dear student, As you have asked multiple part question but according to guideline we will answe…

Q: Consider the reaction Cl2(g) + Br2(g) → 2 BRCI(g) at 25 °C. The entropy change for the reaction is…

A:

Q: C3H8 (g) + 502 (g) --> 3CO2 (g) + 4H2O (g) + 2200 k) Given the above equation, which statement is…

A:

Q: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous? Explain

A: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous has to be…

Q: Which of the following is TRUE for the exothermic decomposition of hydrazine?   N2H4 (l) ----> N2…

A:

Q: Which of the following is non-spontaneous? A. Rain falls from the sky B. A plant grows into a tree…

A: A cellphone battery is being recharged

Q: Which of the following reactions are/is spontaneous? a) The melting of ice cubes at -5°C and 1 atm…

A: a. Melting of ice is non spontaneous at -5°C and 1 atm because it melts at 0°C and 1 atm. Below this…

Q: Which of the following does the change in the free energy of a reaction predict? A) the work done B)…

A: Free energy is a deciding factor for the spontaneity of any chemical reaction. Lower free energy of…

Q: 22. The formation of 1/2A2 + 2B2 + C → CAB4 has an enthalpy of formation of 104 kJ and change in…

A: Ans 22. Given  Enthalpy of formation,∆Ho =-104 kJ  Change in entropy, ∆So = -60.8 J/K = -0.0608…

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

A: The spontaneity of the reaction can be known by calculating their free energy change . The equation…