4. Calculate the change in entropy if 3 moles of a gas undergo an isothermal, reversible expansion at 373 K in which the pressure is decreased to 1/3 of its initial value.

Q: Choose the compound with the largest standard molar entropy, S° (298.15 K). A) H:O(I) B) H:O(g) C)…

A: Standard molar entropy: The standard molar entropy is defined as the entropy or degree of randomness…

Q: A) CaSO:(s) B) C(diamond) C) Xe(g) D) Cso(s) E) Br2(1)

A: Option B is correct answer. B. C ( diamond)

Q: The concentration of glucose inside a cell is 0.13 mM. Outside the cell the concentration of glucose…

A: Given that : Concentration of glucose inside the cell (Ci)= 0.13 mM Concentration of glucose outside…

Q: Consider a process in which 250 kJ of energy is transferred reversibly and isothermally as heat to a…

A: Entropy is the measure of degree of randomness. The change in entropy can be measured as follows:

Q: The variation of the Gibbs free energy of a given substance with temperature is given by G = aT + b…

A:

Q: Estimate the molar entropy of potassium chloride at 5 .0 K given that its molar heat capacity at…

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Q: Three moles of an ideal gas at 500 K expand quasi-statically and isothermally from an initial volume…

A:

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

A:

Q: What is the absolute entropy of chlorine gas at 300 K using Cp = 0.48 J/ g.K?

A: Given that : We have to calculate the absolute entropy of chlorine gas at the given conditions :…

Q: For a mixture of three ideal gases, A, B, and C, what is the mole fraction of A when the entropy of…

A: The mole fraction of a gas is a unitless quantity. It is calculated by dividing the number of moles…

Q: The standard molar entropy for Br2(g) is 245.46 J/(mol-K) at 25°C. Given that AS - 104.58 J/K for…

A: For the dissociation of Br2 (g) into Br (g) at 25oC, the entropy change, ΔS, is calculated as shown…

Q: (b) Calculate the increase in entropy when 1.00 mol of a monatomic perfect gas with Cp,m = (5/2)R is…

A:

Q: Calculate the change in molar entropy when hydrogen gas is heated from 20°C to 30°C at constant…

A: Entropy change of the system is a state function. The change in entropy is the sum of the change in…

Q: For the isothermal expansion of a gas into a vacuum,ΔE = 0, q = 0, and w = 0. (a) Is this a…

A: (a) The spontaneous process is the process which starts on its own or initiate without any external…

Q: Which of the following is expected to have the highest standard molar entropy at 298.15 K? O C3H8…

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Q: When 10 J of energy is transferred reversibly and isothermally. Calculate the change in entropy at…

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Q: The entropy of a crystal containing one mole of identical molecules was measured to be 9.134 J/K at…

A:

Q: Using the Boltzmanns formula calculate the entropy of 1.13e12 molxeules if they are randomly…

A: Calculation of residual entropy :

Q: The absolute molar entropies of oxygon gas and nitrogen gas are 205 J mol-1 K-1 and 192 J mol-1 K-1…

A: Given : Molar entropy of N2 = 192 J/mol.K Molar entropy of O2 = 205 J/mol.K Moles of N2 = 9.2 mol…

Q: Choose the compound with the smallest standard molar entropy, S° (298.15 K). A) H2O (l) B) H2O (g)…

A: Entropy is the measure of disorder of molecules in a system. More the randomness, more will be the…

Q: Recall that for a monoatomic ideal gas, CV = (3/2)R. If an equal number of moles of any three ideal…

A: The ideal gas equation is given by  PV = nRT

Q: Which of the following thermodynamic functions can be measured absolutely? A. Internal Energy B.…

A: Given : We have to tell which of the following can be measured absolutely.

Q: 1 mole of an ideal gas exist at a temperature (200 K) and at a constant volume . Calculate the…

A:

Q: Calculate the change in entropy when 15.9 grams of argon (Ar) undergo isothermal compression from…

A:

Q: 4. During the process of freezing, what do you know about changes in the temperature and entropy of…

A: Given statement is :  During the process of freezing, what do you know about changes in the…

Q: 15.) Determine the change in entropy of the reaction: SO2 (g) + H2O2 (1) → H2SO4 (1). The standard…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: CALCULATE THE CHANGE OF ENTROPY OF GAS WHEN 16.08g of N2 nitrogen expands isothermally from 0.82L to…

A: Given information, Mass of nitrogen (m) = 16.08 g Temperature (T) = 290.7 K Initial Volume (V1) =…

Q: 10. Calculate the change in molar entropy of trichloromethane when heated from 0.0°C to 27°C. The…

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Q: The standard molar entropy of silver chloride (AgCl) is 96.2 J/(mol*K). What is the entropy of 1.78…

A: We have to calculate the entropy of given mass of Silver chloride.

Q: The Third Law of Thermodynamics states that the entropy of a perfect crystal at absolute zero (0 K)…

A: As per the third law of thermodynamics, the entropy of a perfect crystal at absolute zero (0K) is 0.…

Q: Calculate the change in entropy of 1 mol of nitrogen if it is heated from 300 K to 1000 K at a…

A: Moles of nitrogen = 1 mole T1 = 300 K T2 = 1000 K P = 1 atm

Q: Calculate the molar entropy of a constant-volume sample of argon at 250 K given that it is 154.84 J…

A: The molar entropy has to be given, A constant-volume sample of argon at 250 K given that it is…

Q: Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one- half of a…

A: At constant temperature, change in entropy is calculated using formula :

Q: Calculate the change in entropy for 17 moles of gold if the temperature changes reversibly from…

A: Entropy of a system can be defined as the degree of randomness in that system. Joule per Kelvin is…

Q: Calculate the change in entropy when 5.37 grams of helium (He) undergo isothermal expansion from…

A: Given data: Grams of Helium = 5.37 g. Initial volume Vi = 2.72 mL Final volume Vf = 975 mL. To…

Q: Water is heated from 25 °C to 35 °C. By how much does its chemical potential change? The standard…

A: Chemical potential (μi) It is called as partial molar Gibb's free energy. It is the change in Gibb's…

Q: Calculate the change in entropy when 4.00 g of nitrogen is allowed to expand from 500 cm3 to 750 cm3…

A: Entropy denotes the randomness of the particle as the randomness increase entropy also increase.

Q: One mol of an ideal gas at 300 K expands reversibly from 3 x 102 m³ to 5 x 102 m3, Calculate the…

A: Entropy change at contact temperature with change of volume relation given below

Q: Calculate the molar heat capacity (Cpm ) of Magnesium chloride if the change in entropy is 0.264 J/K…

A: Assuming that the molar heat capacity (Cpm ) of  Magnesium chloride is constant over temperature…

Q: Calculate the change in molar entropy when a sample of nitrogen gas expands isothermally from 1.0…

A: Initial volume, V1 = 1.0 dm3 Final volume, V2 = 5.5 dm3 At isothermal conditions, change in…

Q: If one mole of an ideal gas (Cp,m = 5R/2) is expanded isothermally at 300 K until it's volume…

A: We have to calculate the change in entropy of the gas .

Q: Titanium has a normal melting point of 1668 °C and a molar enthalpy of fusion of 14.15 kJ mol-1 .…

A:

Q: 4) Consider the isothermal expansion of a 1.00 mol sample of ideal gas at 37 from the initial…

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

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A: The reaction given is, => Al2O3 (s) + 3 H2 (g) → 2 Al (s) + 3 H2O (g)

Q: Whenever a gas expands isothermally, such as when you exhale or when a flask is opened, the gas…

A:

Q: Calculate the change in entropy when the pressure of a 55.0 g sample of oxygen gas is increased from…

A: Given- w= 55.0 g Molar mass of O2= 32g/mol P1 =625 mm Hg P2 = 1.24 atm Temperature = 250 C =…

Q: The second law of thermodynamics states that A. in a spontaneous process, the entropy of the…

A: First law of thermodynamics is concerned with the conservation of energy while the second law of…

Q: the molar entropy of ammonia, NH_3 (g) at 25deg cel is 192.5 J/mol*k. Estimate the number of micro…

A: The standard molar entropy of ammonia gas is 192.5 J/mol.K. One mol of ammonia gas contains 6.022 x…