Determine the entropy change for the this reaction. CaC2(s) + 2H2O(l) ---> C2H2(g)  + Ca(OH)2(s) Delta H(rxn)= -128.9kJ Substances: CaC2(s)= S(1/mol*K)= 70.0 Delta H(f) (kJ/mol)= -59.8 H20(l)= S= 69.9 Delta H= -285.8 C2H2(g)= S= 200.8 Delta H= ? Ca(OH)2= S= 83.4 Delta H= -986.1

Q: Explain why the entropy change when a gase expads isothermally?

A: When the gas will expand isothermally  change in the internal energy is zero .

Q: Will the entropy for each of the following be positive or negative?…

A: Entropy increases with increase in the disorder or randomness of the system. it is represented by…

Q: Calculate the standard entropy change for the combustion of propane, a common fuel. C3H8(g) + 502(g)…

A:

Q: What is the total entropy change at 25°C for the reaction below, if the standard entropies of…

A: Given :-  The given reaction is      5C(gr) + 5H2(g) → C5H10(g) ...........(A) Sº (C(gr)) = 5.74…

Q: 6. Calculate AS°univ, and state whether the reaction occurs spontaneously at this temperature.…

A: We only answer one question from the multiple questions with sub-parts. Please resubmit the question…

Q: AS° for the reaction shown is equal to -667.8 (J/mol-K). Use the information given in the table to…

A: Given,

Q: At high temperatures, ammonia decomposes to N2 and H2:2NH3 (g) ----> N2 (g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: Calculate the standard entropy change for the reaction ; CO2(g) + H2O( l) →   CH4(g) + O2(g)…

A: Given   Reaction  CO2(g) + H2O(l) →   CH4(g) + O2(g)   Standard entropy change = ?

Q: If the normal boiling point of a liquid is 67 °C, and thestandard molar entropy change for the…

A: The boiling point of a given liquid can be defined as the temperature at which the vapor pressure of…

Q: information:         CH3OH (l) + O2 (g)  --> CO2 (g) + 2H2O (g)                Substance S°…

A: Given- S°(H2O)=232.7J/mol×K S°(CO2)=213.8J/mol×K S°(CH3OH)=126.8J/mol×K S°(O2)=205.0J/mol×K

Q: Steam is condensed at 100°C and the water is cooled to 0 °C and frozen to ice. What is the molar…

A:

Q: Calculate the standard entropy change for the following reactions at 25°C. Use the values of…

A: Given reaction,      2NaHCO3(s) → Na2CO3(s) + H2O(l) + CO2(g)

Q: At high temperatures, ammonia decomposes to N2 and H2:  2NH3 (g)= n2(g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

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

A: The formula used here is as follows: Calculations have been shown in the following step.

Q: The crystalline hydrate Cd(NO3)2 .4H2O(s) loses waterwhen placed in a large, closed, dry vessel at…

A: a) The process is spontaneous at room temperature. The standard enthalpy change for the reaction is…

Q: Use the following information to find entropy of the vaporization of Sn (tin). The boiling point…

A:

Q: 5) Find the molar entropy of vaporization (in J/(K-mol)) for a certain substance given that to…

A:

Q: 00 mol He gas, regarded here as a perfect gas, und <pansion at 20.0 °C from 1 atm to 3 atm.…

A:

Q: The give reaction is C6H12O6 (s) + O₂(g) → CO₂ (g) + H₂O (1) Asrxnnxsº (products)->nxsº (reactants)…

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Q: a. N2 (g) + 3Cl2(g) → 2NCl3(g) ΔHo = 460 kJ/ mol; ΔSo = - 275 J/ K b. N2(g) + 3F2(g) → 2NF3(g) ΔHo =…

A: Here given multiple question...

Q: Determine the standard entropy of N2(g) given the following information: N2(g) + 3H2(g) --> 2 NH3(g)…

A: Entropy is the property of the system which measures the degree of disorder or randomness in the…

Q: Examine each of the reactions in the multiple choices below and decide whether the entropy change…

A: If gaseous mole of product increases then reaction have positive entropy change if gaseous mole of…

Q: Using the entropy values in the table below, what is the change in standard entropy, AS, for the…

A: We would use given standard entropy values of species in involved in reaction to calculate entropy…

Q: Determine the: a. Heat of the reaction, AH b. AS c. AG at 25°C for the combustion of ammonia,…

A: a.

Q: Calculate ∆ Go For the following reaction at 150o C. Is it spontaneous as written? (Hint: need to…

A:

Q: Whatto do: Determine whether the entropy change is greateror lesserthan zero for each of the…

A: Answer: Entropy is actually tells us about, in how many different states a system can be. More…

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

A:

Q: Stephanie has 17.7 g of liquid carbon dioxide CO2 which vaporizes at its normal boiling point -78.46…

A: mass of CO2 = 17.7 g normal boiling point -78.46 °C   Molar mass of CO2 = 44.01 g/mol  Enthalpy of…

Q: Isomers are molecules that have the same chemical formulabut different arrangements of atoms, as…

A: a.

Q: Steam is condensed at 100 ‰, and the water is cooled to 0 ‰and frozen to ice. What is the molar…

A: Entropy change is given by ∆S=∆H/T ,where ∆H is change in enthalpy and T is temperature.

Q: II. Predict and explain why the sign of the change in entropy for the following processes: 1.…

A: Entropy is basically associated with the randomness of the system. If randomness increases entropy…

Q: Consider the following reaction at constant P. determine the value of deltaS of the surroundings at…

A: In this question, we want to determine the ∆Ssurr  You can see the details solution below.

Q: The following reactions take place at 25 °C and 1 atm. Calculate the entropy change for urrounding.…

A: The change in entropy of the surroundings is a measure of how much energy is being taken in or given…

Q: What is the molar entropy for the series of compound? a) 36.0 g H2O (l) b) 17.0 g NH3 (g) c) 60.0…

A: When one substance reacts with another to produce one or more products, this is called a chemical…

Q: N2H4 (g) + H2 (g) ---&gt; 2N2H3 Would you expect the entropy change for the above reaction to &gt;0,…

A: Given,One mole of hydrazine reacts with one mole of hydrogen produces two moles of ammonia.

Q: entropy

A:

Q: Calculate the standard entropy change for the reaction; CO2(g) + H20(1) → CH4(9) + O2(g) Note:…

A: The balanced chemical equation is,

Q: Calculate the entropy change when graphite burns in sufficient supply of oxygen as shown in the…

A: Cgraphite(s) + O2(g) ------&gt; CO2(g)

Q: Calculate the standard free-energy change (ΔGo) at 25°C for the reaction H2(g)+O2(g) ⇌ H2O2(l)

A:

Q: Determine the standard entropy of N2(g) given the following information: N2(g) + 3H2(g) = 2NH3(g);…

A:

Q: The entropy of vaporization for a certain organic compound is 15.7 J/Kmol, and the boiling point is…

A:

Q: The following entropy values are for carbon tetrachloride (liquid and vapor):       For CCl4(l), So…

A: Given  Boiling point   = 76.72 ℃                         = (76.72 + 273)                        =…

Q: The total entropy change will determine whether a process is spontaneous (favours the forward…

A: Entropy :- It is thermodynamic quantity which refers to randomness or disorderness of system and…

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: Calculate the entropy of the phase change of uranium hexafluoride from gas to solid. UF6(g) → UF6(s)…

A:

Q: Using the data below, calculate the entropy for the formation of rust, iron(II) oxide from Fe and…

A: In this question we have to tell the entropy of the reaction.

Q: How can you calculate the standard entropy change for a reaction from tables of standard entropies?…

A:

Q: Consider the following reaction: N2(g) + 3H2(g) ⇄ 2NH3(g) A) Determine ∆Hrxn˚ and ∆Srxn˚ using the…

A:

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

A: Given,∆S0 for Carbon= 5.74 J/mol K∆S0 for Hydrogen= 130.68 J/mol K∆S0 for C7H16= 130.68 J/mol K