Question 20 of 20 Submit A reaction will be spontaneous at all temperatures if. A) AH and AS are positive B) AH and AS are negative C) AH is positive and AS is negative D) AH is negative and AS is positive

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Q: Which of the following is true about the total entropy of the universe? A) It is always increasing…

A: Which of the statement is true about total entropy of the universe ?

Q: Based on the AHand AS values for a given chemical reaction, it is possible to predict whether the…

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Q: 1) Which of the following statements is TRUE? A) ASuniverse is always greater than zero for a…

A: The condition of spontaneity of a reaction is that overall change in Gibbs free energy should be…

Q: Which one of the following is always positive when a spontaneous process occurs? * AH(sys +sur)…

A: The second law of thermodynamics gves the insight of the direction of any spontaneous process.

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A: The decomposition reaction can be written as 2 HgO (s, red) -------------> 2 Hg (l) + O2 (g)

Q: Determine if the photosynthesis reaction is spontaneous at 80°C. Chemical Equation: CO2 + H20 –…

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Q: A reaction is non-spontaneous. What can you conclude about the reverse reaction?   It is…

A: Spontaneity - It is a condition in which a reaction favors the formation of products .

Q: Assuming AH and AS are constant with respect to temperature, under what conditions will a chemical…

A: SOLUTION: Step 1: The Gibbs free energy can be expressed by the expression: ΔG = ΔH – T ΔS For a…

Q: Predict the signs of ΔH and ΔS for this reaction. Explainyour choice.

A: Given diagram,

Q: If AH = -50.0 kJ and AS = -0.400 kJ/K , the reaction is spontaneous below a certain temperature.…

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Q: Predict (do not calculate) the sign of AS°for the following reaction. CO(g) + H20(g) -. CO2(g) +…

A: INTRODUCTION: Entropy is defined as the randomness or disorderness in the system.It may increase by…

Q: A reaction will be spontaneous at all temperatures if A) AH and AS are positive B) AH and AS are…

A: A reaction will be spontaneous if Gibbs free energy become negative.

Q: Which of the following represents a process that is spontaneous only at high temperatures? O…

A: ∆G = ∆H - T∆SWhere,∆G = gibbs free energy∆H = reaction enthalpyT = temperature∆S = reaction…

Q: 7) Calculate AG for a reaction at 85 °C if AH is -34.6 kJ and AS is -114 J/K. Is the reaction…

A: Given ΔH = -34.6 kJ ΔS = -114 J/K T = 85°C

Q: 38. Based on the AHand AS values for a given chemical reaction, it is possible to predict whether…

A: We know according to Thermodynamics ∆G = ∆H -T∆S  For a reaction to be spontaneous ∆G must be -ve .

Q: Calculate the free energy change for this reaction at 25 °C. Determine if the reaction is…

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Q: Which of the following is a correct statement about the third law of thermodynamics ? O The entropy…

A: Thermodynamics is the branch of science which deals woth the study of energy changes and their…

Q: Calculate AGo for a reaction for which AH° = 24.6 kJ and AS° = 132 J/K at 298 K. Is this reaction…

A: Answer: option c) -14.7 kJ ; spontaneous

Q: Which of the following represents a process that is spontaneous only at high temperatures? AH:…

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Q: For the synthesis of nitrogen dioxide, NO2: 2N2(g) + O2(g) →2NO2(g) this reaction has the energy…

A: The equilibrium reaction taking place is given as, => N2 (g) + 2 O2 (g) -------> 2 NO2 (g)…

Q: A reaction will be spontaneous at all temperatures if O a. AH and AS are negative. O b. AH is…

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Q: Assuming AH and AS are constant with respect to temperature, under what conditions will a chemical…

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Q: Consider a reaction that has a negative AH and a negative AS. Which of the following statements is…

A: 1.The relation between ΔG, ΔH, and ΔS can be described by the equation below:wherein T is the…

Q: A reaction with a AH and a AS will never be spontaneous. O positive, negative O positive, positive…

A: A reaction with a ... ∆H and a ... ∆S will never be spontaneous.A spontaneous reaction is the one…

Q: if the enthalpy change is negative and the entropy change is positive this reaction would be

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Q: How does the entropy of the surroundings change duringan exothermic reaction? An endothermic…

A: Entropy of surrounding will increase during an exothermic reaction because heat is absorbed by…

Q: 24) A negative sign for AG indicates that, at constant temperature and pressure, A) the reaction…

A: A spontaneous reaction is a chemical reaction that occurs without the need for an external energy…

Q: An spontaneous process ALWAYS has a negative AG O has a negative AH O has a positive AH has a…

A: A spontaneous process is capable of proceeding in a given direction without needing to be driven by…

Q: Which of the following is not true about a spontaneous process? A) A spontaneous process is one that…

A: A spontaneous reaction is one that is capable of occurring in a given direction without being driven…

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: Determine the sign of AS for the following process. Liquid water at room temperature is placed in a…

A: Entropy change (∆S): It gives the concept of the degree of disorders.  Reactant→Product ∆S= Sp- SR…

Q: Which of the following represents a process that is always spontaneous? ASsys: negative ASsurr:…

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