(a) Does the entropy of the surroundings increase for spontaneousprocesses? (b) In a particular spontaneous processthe entropy of the system decreases. What can you concludeabout the sign and magnitude of ΔSsurr? (c) Duringa certain reversible process, the surroundings undergo anentropy change, ΔSsurr = -78 J/K. What is the entropychange of the system for this process?

Q: The normal boiling point of Br2(l) is 58.8 ∘C, and it'smolar enthalpy of vapor Calculate the value…

A: The molar enthalpy of vaporization is 29.6 kJ/mol Temperature = 58.8 + 273 = 331.8 K

Q: If enthalpy is +220 kJ for a reaction and entropy is +120 J, at what temperature is this…

A: The spontaniety of any reaction is decided by the Gibb's free energy change if the reaction. Any…

Q: Which of these reactions is expected to be spontaneous at all temperature?          (A

A: We have to tell which reactions is expected to be spontaneous at all temperature

Q: Consider the reaction N2(g) + 2H,O(1)–→2NO(g) + 2H2(g) for which AH° = 752.2 kJ and AS° = 351.6 J/K…

A: The detailed question had been solved on white sheets of paper attached below.  Here it is important…

Q: Here is the reaction of carbon monoxide and hydrogen to form gaseous methanol at 298 K. (a)…

A: (a) ∆S° = -219.2 J/K (b) Sign of ∆S° = -ve (c) ∆H° = -90.5 kJ (d) ∆G° = -ve ( spontaneous reaction )

Q: Methanol is relatively inexpensive to produce. Much consideration has been given to using it as a…

A: ∆SCH3OH = 126.8 kJ/mol ∆SCH4 = 186.264 kJ/mol ∆So2 = 205 kJ/mol

Q: The normal boiling point of ethanol is 73.2˚C, and its molar enthalpy of vaporization is 41.2…

A: Given : Normal boiling point of ethanol = 73.2 ˚C And enthalpy of vaporization, ΔHvap = 41.2 KJ/mol…

Q: At what temperature would a given reaction become spontaneous if the AH = +157 kJ and AS = +333 J/K?

A:

Q: A system goes from state 1 to state 2 and back to state 1. (a) Is ∆E the same in magnitude for both…

A: Given, A system goes from state 1 to state 2 and back to state 1.

Q: A reaction has values ΔS = 78.3 J K-1 mol-1 and ΔH = 46.5 kJ mol-1. At what temperature (in °C) will…

A: For a reaction becoming spontaneous the value of ∆G must be negative.

Q: 2) Consider the following information AH = -40.5 kJ; AS = 342.1 J/K 40°C A+B→C (a) Just by looking…

A: ΔG ΔH ΔS Spontaneous at all temperature - + Spontaneous at low temperature - -…

Q: 3. (2) Does the entropy of the surroundings always increase for spontaneous processes? Explain. (b)…

A: The entropy is a measure of randomness of a system. In a spontaneous process, the entropy of the…

Q: Lighters are usually fueled by butane(C4H1O). When 1 mole of butane burns at constant pressure it…

A: Given: Moles of butane= 1 mol Heat produced =2658 kJ Amount of work done=3 kJ  To Calculate: the…

Q: (a) For the following reactions, using the provided AH and AS data, determine whether each one would…

A: ##Since you have posted multiple questions with multiple sub parts, we will provide the solution…

Q: Calculate the entropy change (in J/K) of the universe (AS universe) that takes place when phosphene…

A:

Q: If the entropy of a reactions is -264.54 J/ mole K and the enthalpy of the reaction is 117.63 kJ/…

A:

Q: For the reaction CaO(s) + CO2(g)CACO3(s) at 298 K, AG = -130.9 kJ/mol, AH= -178.3 kJ/mol, AS = -159…

A: For spontaneous reaction, value of  ΔG is negative. For non- spontaneous reaction,  value of ΔG is…

Q: 2) Consider the following reaction at constant pressure. Use the information here to determine the…

A: The objective of the question is to determine the value of ​ and whether the reaction is spontaneous…

Q: Consider the reaction 2NO(g) + 2H₂(g) N₂(g) + 2H₂O(1) for which AH° = -752.2 kJ and AS° = -351.6 J/K…

A: Here we have to predict whether the reaction is product favored  or reactants favored  in the…

Q: ΔEsys

A:

Q: It is determined that a particular chemical reaction has ΔHorxn = -115 kJ and ΔSorxn = -263 J K-1.…

A: This question belongs to Chemical Thermodynamics. Given that  ΔHorxn = -115 kJ = -115000J and ΔSorxn…

Q: Which substance has the higher entropy?(a) dry ice (solid CO2) at −78 °C or CO2(g) at 0 °C(b) liquid…

A: The substance which has higher entropy has to be predicted.

Q: Derive an expression for ΔS for an isothermal pressure change of an ideal gas. Then, calculate ΔS…

A:

Q: Calculate the standard free energy of formation (AGF) of the following compounds using the heats of…

A: Part a)   Part b)  Part c)   Part d)

Q: If ΔS ̊sys = -198.3 J/K, is the reaction spontaneous at 25 ̊C. -ΔSuniv = ΔSsys + ΔSsurr > ? -…

A: Enthalpy change of the reaction can be calculated as the difference between the enthalpy of…

Q: Suppose a reaction has DH > 0 and DS > 0; that is, both enthalpy and entropy changes have positive…

A: The Gibbs-Helmholtz equation is: ∆G = ∆H - T∆S.  If ∆G is negative then the reaction will be…

Q: What are the signs of ΔH, Δ S, and ΔG for a spontaneous endothermic process?

A: Answer:Here, T must always be in Kelvin

Q: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up…

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction…

Q: Predict the sign of ΔSₛᵧₛ for each process: (a) Gasolinevapors mix with air in a car engine. (b) Hot…

A: Entropy is the measure of randomness.∆Ssys is positive, if the randomness increase and negative if…

Q: Given the following data, calculate ΔGorxn to determine if the reaction Ti(s) + 2Cl2(g) -> TiCl4(l)…

A: Solution- Given data- ΔH of (TiCl4(s))=−804.2 kJ/mol and ΔH of(Cl2)=ΔH of (Ti(s))=0 kJ/mol.

Q: (b) 2 Na(s) + 2 H20(1) → 2 NaOH(aq) + H2(g) As° J/K rxn As° × 10 J/K (enter your answer in…

A: Given data :- 2Na(s)    +     2H2O(l)     →   2NaOH(aq)    +    H2(g) ∆S for Na = 51.05 J/mol.K ∆S…