At very low temperatures the molar constant-pressure heat capacity of many solids varies as aT3, where a is an empirical constant. Suppose that for a certain solid Cp,m =0.43 J K-1 mol-1 at 4.2 K. What is the change in the molar entropy o f this solid as its temperature changes from 4 .2 K t o 10 .0 K?

Q: The heat capacity of chloroform (trichloromethane, CHCl3) in the range 240 K to 330 K is given by…

A: Given information: Chloroform (CHCl3) is heated from 273 K to 300 K, here to calculate the change in…

Q: The molar entropy of argon (Ar) is given by Sm= 36.4 + 20.8 In T (in SI units). Calculate the change…

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Q: The molar entropy of argon (Ar) is given by Sm = 36.4 + 20.8 ln T (in SI units). Calculate the…

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Q: enthalpy

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Q: Consider the reaction: H2(g) + C¿H¿(g)–→C¿H&(g) Using standard absolute entropies at 298K, calculate…

A: Entropy is defined as the randomness of the reaction. It is a thermodynamic quantity that measures…

Q: Estimate molar entropy of kcl at 5K given that it's molar heat capacity at that temperature is…

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Q: The molar entropy of a sample of neon at 298 K is 146.22 J-K-.mol. The sample is heated at constant…

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Q: The temperature dependence of the heat capacity of non-metallic solids is found to follow the Debye…

A: At very low temperature heat capacity of non metallic solids is described by Debye T3 law. Heat…

Q: Estimate the increase in the molar entropy of O2(g) when the temperature is increased at constant…

A: Given: T1 = 298 K T2 = 348 K Cp = 29.355 J/K*mol

Q: Use the Maxwell relations to show that the entropy of a perfect gas depends on the volume as Soc R…

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Q: In the plot of chemical potential vs temperature at constant pressure, which of the following is…

A: In the plot of chemical potential vs temperature at constant pressure we have to select the…

Q: A closed, but not isolated system is in thermal contact with its surroundings. The system's volume…

A: The system and the surroundings are in thermal contact with each other, as per the given scenario.

Q: 5. For a pure substance a. Derive the following expression пк T. b. How does the molar entropy…

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Q: Steam is compressed reversibly to liquid water at the boiling point 100°C. The heat of vaporization…

A: Solutions           Find W per mole and Q per mole and each of the thermodynamic quantities...

Q: The molar heat capacity for carbon monoxide at constant volume is ??, ?=20.17 J/(K·mol)CV, m=20.17…

A: Volume V = 9.00 L  Pressure P = 9.00 kPa = 9000 Pa  Initial Temperature Ti  = 25.0 degree C  Final…

Q: he molar enthalpy of fusion of ice at 273.15 K and one atm is ΔfusHm (H2O)=6.01 kJ mol-1 , and the…

A: ΔfusHm (H2O)=6.01 kJ mol-1ΔfusSm (H2O)=22.0J K-1 mol-1

Q: a) Calculate the As° for this process. b) What is the standard molar entropy for CH3COOH (g), taking…

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Q: Consider this modified equation of state: nRT P: V-nb as a. Evaluate the term (85) for the equation.…

A: We have a modified equation of state which is given by P=nRTV-nb If we expand this equation, we will…

Q: The constant pressure molar heat capacity of argon is 20.79 JK-1 mol -1 at 298 K. Predict the value…

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Q: hen 1 mole of supercooled water (H2O) in an isolated chamber spontaneously turns into ice, which has…

A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…

Q: C, Hy (G) t H,olG)–7 CH3CH, OH G) Vamg Standard aiosowle entroptes@298k, Caicloie entropy Ohange for…

A: Answer:- This question is answered by using the simple concept of calculation of change of entropy…

Q: Calculate the change in molar entropy of the system associated with transforming a supercooled water…

A: Initial state. Water at -10°C. To convert it into ice we will first take the water to 0°C and then…

Q: (a) Which of the thermodynamic quantities T, E, q, w, andS are state functions? (b) Which depend on…

A: a.

Q: Without carrying out an explicit calculation, explain there lative values of the standard molar…

A: Standard Molar Entropy In chemistry, the standard molar entropy is the entropy content of one mole…

Q: The standard molar entropy of NH3 is 192.45 J K-1 mol-1 at 298K, and its heat capacity is given by…

A: The given relation to calculate the heat capacity is shown below:

Q: The change in Gibbs' free energy is also considered a measure of the additional work that a system…

A: Given statement is :  The change in Gibb's free energy is also considered a measure of the…

Q: 3. The standard molar entropy of H,(g) is Sº = 130.7 J mol¬1 K-1 at 298 K. Úse this value, together…

A: Given,S0 = 130.7J/mol K.lnW = 2.303 logW.Boltzmann constant, KB = 1.3087 * 10-23J/K.The formula used…

Q: 1. 3 moles of CO2 gas in a closed expandable container undergoes the change in its temperature and…

A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…

Q: When 3.93 moles of a liquid with a heat of vaporizations of 27.7 k) mol-1 is vaporized at 290 K and…

A: Given: Moles of liquid = 3.93 mol. Heat of vaporization of liquid = 27.7 KJ/mol. Pressure = 105 KPa…

Q: The molar heat of combustion, A H, of methane is -890.7 kJ mol-1. If 0.0500 moles of methane is…

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Q: 2.3. For a process occurring at constant temperature and pressure, the equation for the Gibbs free…

A: We know, Gibbs free energy is the free energy which can be used to do non mechanical work. It is…

Q: The nonspontaneous reactionD + E → Fdecreases the system entropy by 51 J/(K·mol).     What is…

A: Gibbs free energy equation is given by,

Q: Formation of carbon dioxide Data: Standard molar enthalpy of formation of CO2 (g) at 300 K: AH°(CO2,…

A: Standard enthalpy of formation is enthalpy change when one mole of product is synthesized from its…

Q: Consider the reaction: 2H;(R) + O;(g)→2H;O(g) Using standard absolute entropies at 298K, calculate…

A: Interpretation: Using standard absolute entropies at 298K, the entropy change for the system when…

Q: For an isothermal and isobaric process that has AU = 100 kJ/mol, AH = 125 kJ/mol and AS = 225…

A: In thermodynamics, the Helmholtz free energy is a thermodynamic potential that measures the useful…

Q: Half a mole of an ideal gas expands isothermally and reversibly at 298.15 K from a volume of 10 L to…

A: This is a multipart question,so I can answer only first three part of the question,as per answering…

Q: What is the signifi-cance of entropy being a state function?

A: Entropy is a thermodynamic state function that determines randomness in a system.  When we raise…

Q: The heat of fusion AH, of ethyl acetate (C,Hg0,) is 10.5 kJ/mol. Calculate the change in entropy AS…

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Q: 2. The molar entropy of argon (Ar) is given by Sm = 36.4 + 20.8 In T (in SI units). Calculate the…

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Q: What will be the Gibbs free energy in KJ/mol if the entropy of the reaction (ΔS°rxn)  is 342.26…

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Q: The molar heat of combustion, A H, of methane is -890.7 kJ mol. If 0.0500 moles of methane is…

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Q: The standard enthalpy of formation of gaseous H20 at 298 K is -241.82 kJ/mol. V heat capacities at…

A: Given reaction is                  H2 (g)  + 1/2 O2 (g)   -->  H2O (g)    molar heat capacity…

Q: Calculate the molar entropy of a constant-volume sample of argon at 270 K given that it is 154.84 J…

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Q: What would the entropy be for a system with 6.05E+1 microstates, in J/mol-K?

A: The relationship between number of micro-states with entropy is given as follows:

Q: What will be the Gibbs free energy in KJ/mol if the entropy of the reaction (AS°rxn) is 305.14…

A: Here units of ∆S° is written wrong it's unit is J/K/mol . So I have corrected it and then proceeded…

Q: Given the following data on Phosphorus and its allotropes o      ∆Hf kJ mol-1  ∆Gfo kJmol-1 So J…

A: Gibbs free energy is the energy utilized for doing certain work. In a reaction, a work done is…

Q: Calculate the change in molar entropy of ethanol at 90°C compared with standard state. You are…

A: As per the given data, the change being talked about is the vaporization of ethanol.