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/mol

Q: Estimate the boiling point of an unknown substance in deg C if the latent heat of vaporization of…

A: We have to predict the boiling point.

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: Given: No. of Moles=2.91 mol Boiling point=61.2+237.15K=334.35K The heat of vaporization= 29.6…

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: 1)Which substance has the higher entropy?a) dry ice (solid CO2) at –78 OC or CO2(g) at 0 OCb) liquid…

A: 1. CO2(g) at 0oC has higher entropy than dry ice at -78oC, because gas has higher entropy due to its…

Q: Which process results in the increase in entropy of the universe? a) the cooling of a hot cup of…

A: To find: The process which results in the increase in the entropy of the universe.

Q: Calculate the entropy change for each of the following reactions. In each case, account for the sign…

A:

Q: The enthalpy of vaporization of methanol (CH30H) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: formuls for this is: entropy change = enthalapy of vapourisation/Boilling temp.

Q: The molar entropies of carbon monoxide and carbon dioxide at 25°C are 197.7 and 213.8 J/molK,…

A: The molar entropy in terms of micro-state is given as :

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: Which of the following is the best example of a positive change in entropy? O A) The mixing of two…

A: Entropy is the degree of randomness or disorder. If randomness increase then entropy will also…

Q: Consider the following equation:                       C2H4 (g)    +    H2 (g)   →    C2H6 (g)…

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Q: 4. Using the thermodynamic information at 25.0°C provided answer the questions below. 2Al(s) +…

A: Dear student ,   since you have posted multiple parts questions we will allow to solve only first…

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: State whether the sign of the entropy change expected for each of the following processes will be…

A: Concept: Entropy is defined as the degree of randomness or disorderliness of the system. An increase…

Q: For each process predict the sign of the entropy change taking place. A. CaCO3(s) → CaO(s) + CO2(g)…

A: Entropy(S) is defined as the randomness or disorderness of the system. When entropy increases, then…

Q: The molar entropies of methane and carbon dioxide at 25°C are 186.6 and 213.8 J/mol·K, respectively.…

A: The molar entropy in terms of microstates can be expressed as,…

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

A:

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: entropy change

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Q: What is the change in entropy when 0.600 g of water decomposes to form hydrogen gas and oxygen gas…

A: Given, 2H2O(l) ----> 2H2(g) + O2(g); Delta S° = 326.3 J/K at 298 K

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Answer :             1. ∆S is negative.             2. ∆S is positive. Explanation :            We…

Q: The accompanying diagram shows how entropy varies with temperature for a substance that is a gas at…

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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: 1. 4NH3(g) + 5O2(g)4NO(g) + 6H2O(g) for which H° = -905.2 kJ and S° = 180.5 J/K at 298.15 K. (1)…

A: 4NH3(g) + 5O2(g)4NO(g) + 6H2O(g) for which H° = -905.2 kJ and S° = 180.5 J/K at 298.15 K.…

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

A:

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: At 25 oC, which of the following substances has the least molar entropy? A. N 2(g) B. C 6H 6(l) C.…

A: Given,        Four substances are given  -                                    A. N2 (g)  B. C6H6 (l)…

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

A:

Q: Which of these species has the highest entropy (S) at 25°C?

A: Entropy is defined as a degree of randomness, and the entropy for a gaseous compound is greater than…

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: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: The entropy change (in J/K) is to be calculated.

Q: Is the formation of acid rain spontaneous or non-spontaneous at 50°C?

A:

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

A:

Q: 4. The entropy will usually increase when 1. a molecule is broken into two or more smaller…

A:

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Thermodynamics is the study of flow heat in the system. The entropy is a thermodynamic quantity that…

Q: Which of the following reactions is likely to have the most negative change in entropy? NH3(g) b.…

A:

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

A: Answer :- ∆G = -16.995 (kJ)  The free energy change (∆G) for the given reaction = -16.995 kJ.…

Q: Predict the sign of entropy. Write P if it is positive and N for negative. • sugar dissolving in tea…

A: Entropy is defined as the randomness of the system.

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: 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: Indicate whether each statement is true or false. CO21g2 and Ar(g) have nearly the same molar mass.…

A: The degrees of freedom of rotational and vibrational motion are directly proportional to the number…

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: First calculate the heat of vaporization for 1.30 mol chloroform at its boiling point.

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen:What is the standard change…

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Q: Calculating ΔG under Nonstandard Conditions What is the free energy change for the process shown…

A: