The combination that always gives a spontaneous process is __. a) +ΔH                       +ΔS b) +ΔH                       -ΔS c) -ΔH                        +ΔS d) -ΔH                        -ΔS e) +/-ΔH                    +ΔS

Q: A process cannot be spontaneous if_ O it is exothermic, and there is an increase in disorder O it is…

A: ∆G= ∆H -T∆S for a spontaneous reaction free energy should be always negative.

Q: A chemical reaction has a standard entropy change, ΔSo, of -287.8 J/(molK) and a standard enthalpy…

A: The given data you have - ΔSo = -287.8 J/K-mol ΔHo =  -138.1 kJ/mol

Q: 2 AgNO3 (s)  +  SO2 (g)      →     Ag2S (s)  +  2 NO2 (g)  +  2 O2 (g) Is the reaction spontaneous…

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Q: Consider the reaction below at constant pressure. Use the information provided to determine the…

A: If delta S surrounding is positive then reaction will be spontaneous.

Q: At constant pressure, the following reaction is exothermic. 3H2(g) + N2(g) + NH3(g) Reaction (as…

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

Q: Which one of the following reactions is spontaneous at all temperatures? (hint: determine AS by…

A: Spontaneous reaction is the reaction which can occur naturally.  For these reactions, change in…

Q: What is a spontaneous process?

A: Spontaneous process is a irreversible process

Q: By is an exothermic reaction. 1) Ag) Analyze when this reaction is spontaneous (i.e. spontaneous at…

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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.

Q: Cite at least 3 examples of non-spontaneous phenomena.

A: This question belong to thermodynamics concept of spontaneity. We know that, ∆G = ∆H-T∆S…

Q: 41. Which of the following is TRUE for a non-spontaneous process? AH = TAS AH TAS

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Q: Using the information in the table below, for which of these substances will vaporization be…

A: Given : Table showing ∆H°f  , ∆G°f , ∆S°f To find : substance that has spontaneous vaporization…

Q: C4H10 (g)+6.5 O2 (g) --> 4CO2 (g) +5H2O (g) favors spontaneous or nonspontaneous?

A: In this question, we will see this reaction is spontaneous or not.  You can see details Solution…

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: 1. Consider a reaction: C₂H₂(g) + 4Cl2(g) → 2CCL4 (1) + H₂(g) Calculate the following by using the…

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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: Spontaneous Process Q: consider the vaporization of liquid water at 1 atmosphere. 1. Is the process…

A: Spontaneous process :-  A process is said to be spontaneous if it takes place by itself without the…

Q: Determine if the synthesis of sulfuric acid is a spontaneous reaction at 25°C. Chemical Equation: S+…

A: The enthalpy of a reaction is the amount of energy released or gained during the course of a…

Q: Find ΔS for melting 5.0 g of ice at 0 °C and 1 atm (heat of fusion of water is 79.7 cal/g).  Is this…

A: Given:  Mass of ice= 5.0 g Temperature = 0°C = 273 K Pressure = 1 atm Heat of fusion of water = 79.7…

Q: Solid N205 reacts with water to form liquid HNO3. Consider the reaction with all substances in their…

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Q: For a spontaneous exothermic process, which of the following must be true

A: The given question tells that the reaction is spontaneous and exothermic

Q: A

A: We Will Choose Correct option

Q: CCl4 (l)    CCl4 (g)      At what temperature does the phase change become spontaneous?  (Give in…

A: Answer is explained below.  For this problem required thermodynamic parameters are as follows:

Q: If AH = -50.0 kJ and AS = -0.300 kJ/K, the reaction is spontaneous below a certain temperature.…

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Q: For the reaction C2H6 (g) → C2H4 (g) + H2 (g) ΔH° is +137 kJ/mol and ΔS° is +120 J/K ∙ mol. This…

A: Given, The balanced chemical equation, C2H6 (g) → C2H4 (g) + H2 (g) ΔH°=+137 kJ = 137000 J, and ΔS°…

Q: A chemist pours two chemicals in a beaker and observes their reaction. The Lable below shows the…

A: The nature of reaction can be determined on the basis of given data values.

Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating merc HgO(s) → Hg(I) +…

A: The question is based on spontaneity of the reaction. we have to determine the temperature at which…

Q: 2 NH3 (g) + 2 O2 (g) → N20 (g) + 3 H20 (g) Is this reaction spontaneous only at low temperatures,…

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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: For the reaction 2 NH3 (g) --> N2 (g)+ 3 H2 (g) , ∆H = +92 kJ. Which of the following is true?…

A: The given reaction is,  2 NH3 (g) --> N2 (g)+ 3 H2 (g) , ∆H = +92 kJ ∆H is positive, that means…

Q: perature, at what temperature does the reaction change from nonspontaneous to spontaneous in the…

A: Temperature (T)= 55400/94.1 = 588.7K

Q: نقطة واحدة Mixing of two or more gases is a spontaneous process O non-spontaneous process none of…

A: *.When more than one gas mix together , then completely mix together and hence a spontaneous…

Q: One of the following processes is spontaneous at 298 K Which one? 1. H2O(l)-H2O(g, 1 atm) 2.…

A: One of the following processes that is spontaneous at 298 K is to be determined.

Q: 12. For a particular chemical reaction ΔΗ= 6.8 kJ and A--29 JK. Under what temperature condition Is…

A: Enthalpy of the given reaction is defined as the difference in the enthalpy of reactants and…

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

A: From thermodynamics: ∆Ssurr=∆HT                                                              . . .…

Q: At constant pressure, the following reaction is exothermic. 3H2(g) + N2(g) + NH3(g) Reaction (as…

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Q: Consider the boiling of hydrogen iodide. Determine the value of ΔSsurr at 298 K, and predict whether…

A: Given : ∆H°vap = 21.16 KJ/mol and ∆S°vap = 89.0 J/K.mol. To find : ∆Ssurr. Solution : As we know,…

Q: What must the sign of ∆G be for any spontaneous process

A: Dear student I have given answer to your question in the image format.

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

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

A: The reaction taking place is given as, => CH4 (g) + 2 O2 (g) -----> CO2 (g) + 2 H2O (l)…

Q: For bioenergetics. a spontaneous process means O AHO >0 O AGO >0 O As° <o O two of the choices O AG°…

A: ∆G = ∆H - T∆S Where, ∆G is the Gibbs free energy ∆H is the change in enthalpy T is the temperature…

Q: chemical reaction has a positive change in entropy. According to the diagram below, that else is…

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Q: Use the appropriate symbol to represent a non-spontaneous process (>, <, =)  ∆G ________________ 0…

A: ∆G represents change in Gibbs free energy.∆E represents change in Internal energy .K represents…

Q: Which of the following processes are spontaneous and which are nonspontaneous: (a) the ripening of a…

A: Spontaneous process The process that can take place without the assistance of any external factor is…

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: 48.3 Consider the following reaction: 3N2(g) + 4H₂O(g) -> N₂O4(g) + 2N₂H4(1) a. Use the…

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Q: The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is the freezing…

A: For freezing process  ∆H &lt; 0  and ∆S &lt; 0  So,  ∆G = ∆H - T∆S  at low temperature  ∆G &lt; 0…

Q: If AH = -70.0 kJ and AS = -0.300 kJ/K , the reaction is spontaneous below a certain temperature.…

A: Formula used ΔG = ΔH−TΔS for reaction to be spontaneous  ΔG &gt; 0 for spontaneous reaction  ΔH =…

Q: What is a spontaneous process? Provide an example?

A: Spontaneous process are those reactions that take place instantaneously without any external force.…