1. Calculate ∆G° for the combustion of ethane 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l)   With the following ∆G°f:                        C2H6(g) = -32.86 kJ/mol                        CO2(g) = -394.4 kJ/mol                        H2O(l) = -237.2 kJ/mo

Q: Given these values, ΔHorxn = +75 kJ; ΔSorxn = +120 J/K; T = 298 K; calculatethe free energy change…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Calculte the standard entropy change, 4,S° for the reaction. O 26.0 JK' mol O 153.2 JK' mol -26.0…

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Q: Which reaction is spontaneous at SATP?   ∆H=62.5 kJ, ∆S=-1.25 J/K   ∆H=-10.1 kJ, ∆S=-49.6 J/K…

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Q: Which one of the following processes produces a decrease in the entropy of the  system?  A. boiling…

A: Entropy of the process increases when- The randomness of system increases and the system is…

Q: Calculate the standard entropy change for the following reaction, 2 SO2(g) + O2(g) →2 SO3(g) given…

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Q: What is the type of entropy change for 6CO2(g) + 6H2O(g) —> C6H12O6(g) + 6O2(g)? Provide…

A: Answer  In this given reaction 6CO2(g) + 6H2O(g)…

Q: Without doing a calculation predict whether the entropy change will be positive or negative when…

A: Entropy is the degree of disorderness or randomness. More closely packed the molecules, lesser will…

Q: certain substance has an enthalpy of fusion of 4.73 kJ/mol and an entropy of fusion of 21.2 J/mol/K.…

A: We know ∆H=∆S×T ∆H=4730j/mol ∆S=21.2j/mol/k So T=4730÷21.2=223.11k

Q: For the conversion of reactant A to product B, the change in enthalpy is 7.80 kJ·mol-1 and the…

A: Solution: ∆H= 7.80 KJ mol-1∆S= 44.4 JK-1

Q: For each of the pairs of substances listed below, CIRCLE the substance that you expect to have the…

A: Entropy of the substance measure the degree of randomness. Entropy is represent by symbol S. Entropy…

Q: Arrange the following substances in order of increasing molar entropy at 25°C: Ne(g), SO2(g), Na(s),…

A: • The given substances is -            Ne(g) , SO2(g) , Na(s) and H2O(l)    • We need to arrange the…

Q: Which one of the following would be expected to have the lowest standard molar entropy, S°, at 25°C?…

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Q: What is the free energy change at 25oC for the reaction below, if the standard entropies of…

A: Gibbs free energy is an energy which is used to do useful work. It is an extensive property which…

Q: Which reaction below is spontaneous at SATP?   ∆Hº=14.1 kJ and ∆Sº=49.2 J/K   ∆Hº=34.1 kJ and…

A: Conditions at SATP (Standard Atmosphere Temperature and Pressure): Temperature = 25°C = 273.15+25 =…

Q: Calculate the free-energy change for the synthesis of ammonia at 25°C given the following sets of…

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

A: Entropy is defined as the degree of randomness or disorderliness of the System.   if the molecules…

Q: Cyclopropane and propylene are isomers that both havethe formula C3H6. Based on the molecular…

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Q: Which of the following is arranged in order of decreasing standard molar entropy at 25°C? O HCIO4(1)…

A: Entropy :-  Entropy is a measure of randomness of particles in a system If particles move randomly…

Q: entropy change

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Q: N2(g) + 3H2(g) → 2NH3(g) Decide which standard entropy (S°) corresponds to which chemical species…

A: The given reaction is the formation of ammonia from the reaction of nitrogen and hydrogen gas. The…

Q: Determine AG for C, H1, () +0,(g) 5 4CO,(g) + SH,0(g) given the following information: Substance AG;…

A: Answer: option a. -2,705 kJ is the value of ∆Grxn for the given reaction.

Q: Without doing a calculation, predict whether the entropy change will be positive or negative when…

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Q: Which substance will have the highest molar entropy at 25oC?   A. C4H10(g)   B. CO2(s)   C.…

A: Solution: We know that, Molar mass of gas is directly proportional to absolute entropy. In above…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2H9O(s) --> 2Hg(I) + O2(g)…

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Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2H9O(s)→2H9(1) + O2(g) What…

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Q: The synthesis of the pesticide thionyl chloride (OSCl2) proceeds according to the following…

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Q: The heat of vaporization of carbon disulfide, CS2, at 25℃ is 27.2 kJ/mol. What is the entropy change…

A: For a phase change, entropy change is given by,

Q: What is the standard molar entropy change of the following reaction? 8 NH:(g) + 10 O:(g) 8 NO(g) +…

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Q: Sucrose, or table sugar, has two molecular forms: linear and ring. If a bag of sugar contains, 5.87…

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Q: Calculate the value of the free energy change, ΔG, for the reaction below at 600.0ºC when the…

A: Given reaction is :  2 POCl3 (g) → 2 PCl3 (g) +  O2 (g)  Pressures of POCl3 (g) at 600.0ºC = 20.00…

Q: The entropy will usually increase when I. a molecule is broken into two or more smaller molecules.…

A: Entropy can be defined as the randomness or disorderness. Higher the number of gaseous molecules,…

Q: a. ENTROPY: Predict the sign of the change in entropy for the following processes. (Positive/…

A: 1. Decomposition of carbonic acid into water and carbon dioxide is associated with positive change…

Q: System 1 has 5 energetically equivalent orientations.  System 2 has 15 energetically equivalent…

A: Given: Energetically equivalent orientations of System 1 = 5 Energetically equivalent orientations…

Q: Which of the following reactions are spontaneous at 298 K? AH = -200 kJ/mol, AS= -1.0 kJ/(mol*K) AH…

A: Recall the following expression for change in Gibbs free energy∆G               ∆G=∆H-T∆SIf for any…

Q: Which of the following substances has the lowest absolute molar entropy at 25°C?   Group of answer…

A: The substances given are HCl(l), HCl (g), HCl (s), HBr (g) and HI (g).

Q: Recognize the species that has the lowest entropy, S° at 25°C. А. СНЗОН (1) B. N2 (g) C. NazSO4 (s)…

A: Entropy is defined as the measurement of disorderedness or randomness in a system. The increasing…

Q: Which expression below could be used to calculate the free energy change for a chemical reaction at…

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Q: The energy produced by a spontaneous reaction is often used to provide the energy to drive…

A: The amino acid combination can be depicted as:

Q: For each of the following reactions, predict if the entropy of the system will increase, decrease,…

A: Entropy :-  It is a thermodynamic property which is a measure of randomness or disorderness present…

Q: Indicate whether each process produces an increase or decrease in the entropy in the system. Please…

A: We have to predict whether we have increase or decrease in the entropy of the system.

Q: Pick the substance from each set that would have the largest molar entropy. Set 1 Set 2 CH-(g) or…

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Q: III. Indicate whether each of the following processes produces an increase or decrease in the…

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Q: Which of the following processes will result in an increase in entropy for the system?          (A)…

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Q: Two moles of helium and three moles of argon are mixed at the same pressure and temperature. a)…

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Q: the highest molar entropy? a. CH2Cl2 (g) b. NH3 (g) c. N2O5 (s) d. N2H4 (l)

A: Entropy is the randomness of molecules in the given system.

Q: i. Define entropy. ii. 1.0 kg of water at 0 °C is mixed with an equal mass of water at 100 °C. After…

A: Given :