A certain reaction has negative value of both ∆H and ∆S. Therefore, the reaction   must be spontaneous at all temperature cannot be spontaneous at any temperature cannot be spontaneous if the temperature is high enough cannot be spontaneous if the temperature is low enough has a positive free energy at any temperature

Q: What is the free energy change at 25°C for the reaction below, if ΔGfo(CH4(g) = -50.790 kJ/mol,…

A: The standard Gibbs free energy change for the formation of substances in their standard state is…

Q: Use the standard free energy data to determine the free energy change for the following reactions,…

A: Answer:- This question is answered by using the simple concept of calculation of Gibbs free energy…

Q: For each of the following processes, indicate whether the signs of ∆S and ∆H are expected to be…

A: The enthalpy change ∆H is related to the flow of energy in the form of heat. Thus, if heat flows out…

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: Which of the following reaction is a spontaneous?     2SO2(g) + O2(g) → 2SO3(g) 2C­(s) + O2(g) →…

A: Given :-  2SO2(g) + O2(g) → 2SO3(g) 2C­(s) + O2(g) → 2CO2(g) H2O(l) → H2O(s) CaO­(s) + CO2(g)…

Q: Organic Functional Groups Predicting the reactants or products of ester hydrolysis Predict the…

A: Step 1: This is acidic hydrolysis of given ester. It gives acetic acid and alpha hydroxy ketone as…

Q: The thermal decomposition of molten sodium chloride into elemental gaseous sodium and elemental…

A: The thermal decomposition of molten sodium chloride into elemental gaseous sodium and elemental…

Q: The Second Law of Thermodynamics states, the entropy of the universe is always increasing, ∆Suni >…

A: Spontaneous Reactions: The reactions that occur spontaneously i.e without any addition of external…

Q: Define spontaneity of a reaction in terms of ∆G. Determine if a process is spontaneous based on…

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Q: Explain what is meant by “free energy” in a system. Will a reaction that proceeds spontaneously have…

A: In chemical terms, free energy refers to Gibbs free energy of the system. The symbol for Gibbs free…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: Answer:A chemical reaction can only be spontaneous when  is less than zero and value of  is:Here: T…

Q: Predict the sign of ∆Srxn by checking a box of your choice on the right of each reaction.   Check…

A: Entropy is the measure of degree of randomness or disorder in the system. Higher the disorder in the…

Q: Using data for ∆H0 and ∆S0 , calculate ∆G 0 for the following reactions at 1 atm and 25ºC.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Polymer -->  Product and you determine that at a given temperature the reaction is spontaneous and…

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Q: When ∆G is negative, a chemical reaction is   using up free energy   spontaneous   non-spontaneous…

A: ∆G is change in gibbs free energy.  Gibbs free energy determines the chemical energy of reaction.…

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

A: False

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: A reaction is said to be spontaneous if a change in Gibbs free energy is negative.…

Q: Calculate the free energy change for the following reaction at 25°C. Is the reaction spontaneous at…

A: Given: ΔHrxn = −1269.8 kJ ΔSrxn=−364.6 J/K T = 25°C = 298 K

Q: TRUE OR FALSE 1. Lowering the temperature of the system will lead to an increase in entropy. 2.…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Hydrogen peroxide decomposes by the following reaction.  The reaction is rapid with the addition of…

A: Entropy is degree of randomness or disorderness.  If the number of Gaseous moles increases then…

Q: Calculate q, AH and AU for the process during which 2 mol NO2 is heated at a constant pressure of 1…

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Q: You are working in a lab and observing a reaction. If a reaction vessel is cold to touch and the…

A: A question about thermodynamics, which is to be accomplished.

Q: The enthalpy and entropy changes for a reaction at 298 K are ∆H = -102 kJ and ∆S = -208 J/K. Which…

A: Given:  ∆H = -105 kJ;       ∆S = -208 J/K;       T = 298 K∆G = ∆H-T∆S∆G = -105 kJ - (298 K) (-0.208…

Q: In a spontaneous process, the entropy of the system always increases. True or False

A: The overall spontaneity of the reaction is determined by the Gibbs free energy change, (∆G) If the…

Q: Calculate the ∆Suni and determine whether the following reaction is spontaneous or nonspontaneous at…

A: Calculate the ΔH and the ΔS for the system   2N2H4(g) + 2NO2(g)→3N2(g) + 4H2O(l)and then ΔSuniv =…

Q: Indicate whether each statement is true or false. Most spontaneous processes are reversible.

A: Given Indicate whether each statement is true or false. Most spontaneous processes are reversible.

Q: For the reaction CaCO3(s) → CaO(s) + CO2(g) which is spontaneous only at high temperatures Group of…

A: The question is based on the concept of chemical thermodynamics. we have to identify the conditions…

Q: Determine the sign of ΔSsys for the following chemical reactions without doing any calculations. a)…

A: Note: As per the guidelines solution of first 3 parts has been made. For the expert solution of…

Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) If ∆H°…

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Q: A chemical reaction that happens quickly is spontaneous, and a reaction that happens slowly is…

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Q: ∆Gº for the reaction, 2HBr(g)⇄ H2(g)+Br2(g), is 33.3 kJ. Which statement below is true? This…

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Q: Octane 1C8H182 is a liquid hydrocarbon at room temperature that is a constituent of gasoline.…

A: We have the equation ∆G°=∆H°-T∆S° Where ∆H° is change in enthalpy, ∆G° is change in free energy, T…

Q: If ΔH and ΔS for a reaction are both negative which of the following is true.   Select one: a. It…

A: We know that ΔG =ΔH - TΔS WHERE ΔG= Gibbs Free Energy ΔH= Enthalpy ΔS = Entropy T= Temperature For…

Q: Example: What is the temperature range in which the following reaction is spontaneous?N2 + 3H2 →…

A: Step 1:Step 2:

Q: Given that the ∆H for the following reaction below is -534 kJ, determine the ∆Hfo for N2H4(l)…

A: The balanced chemical reaction is, N2H4l+O2g→2H2Og+N2g......(1) The enthalpy of the above reaction…

Q: Indicate which of the four cases below applies to the following four reactions (a through d) by…

A: The reactions given are, a)     PCl3(g) +   Cl2(g)   ↔   PCl5(g)…

Q: 64. For each reaction, calculate AHxn, ASixn, and AGxn at 25 °C and state whether or not the…

A: To solve this problem, we will first need to find the standard enthalpy change (H°​rxn), standard…

Q: redict the sign of ΔS ̊ for the combustion of 1-propanol and justify your prediction. Would you…

A: Introduction: Gibbs free energy determine the maximum amount of work done in the system at constant…