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## Related Chemistry Q&A

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A: The entropy change for melting of aluminum can be calculated as

Q: Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure…

A: Enthalpy of fusion for 1 mole of Al is 10699.45 J/molInitial temperature = 25 degC = 298.15K KFinal…

Q: Calculate the measurable change in entropy (for the system) when the state of 2.00 mol of diatomic…

A: Change in entropy of system : VfVi = Tf × PiTi × Pf = 408 × 1.50298 × 7.00 = 0.2934 Cv = Cp - R =…

Q: Calculate the boiling point of carbon tetrachloride if the standard entropy and enthalpy of…

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Q: Calculate the boiling point of carbon tetrachloride if the standard entropy and enthalpy of…

A: The boiling point temperature can be calculated using the following equation: T = ∆H∆S∆H is the…

Q: Consider a process in which the entropy of a system increases by 105 J K−1 and the entropy of the…

A: Given information, The entropy of a system increases by 105 J K−1 The entropy of the…

Q: Calculate the change in entropy when 250 kJ of energy is transferred reversibly and isothermally as…

A: Solution: Entropy is defined as the measure of the randomness of particles in a system.Change in…

Q: Calculate the change in entropy when 50 kJ of energy is transferredreversibly and isothermally as…

A: the randomness of the thermodynamic system is measured in terms of entropy

Q: Consider a process in which the entropy of a system increases by 125 J K−1 and the entropy of the…

A: Entropy change of the universe is the summation of entropy change of the system and entropy change…

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Q: Calculate the entropy of vaporization when the enthalpy of vaporization of propanol is 30.25 J.…

A: Given that, enthalpy of vaporization of propanol, ∆Hvap =30.25 J/mol This is also known as the heat…

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

A: Standard molar enthalpy change can be expressed in terms of standard molar entropy change and…

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Q: How does the standard entropy of a substance depend on its molar mass? On its molecular complexity?

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

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Q: How does the standard entropy of a substance depend on its molar mass? On its molecular complexity?

A: Entropy is a thermodynamic property, which is the measure of randomness of a system. Entropy of the…

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Q: How does the standard entropy of a substance depend on its molar mass? On its molecular complexity?

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

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Q: Question attached

A: Entropy of a system is the measure of the randomness or dis-ordered ness of the system. The entropy…

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Q: During a hypothetical process, the entropy of a system increases by 105 J K-1 while the entropy of…

A: Click to see the answer

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

A: Click to see the answer

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Q: Explain how the internal energy and entropy of a system composed of two levels vary with…

A: SOLUTION: Step 1: Consider a two-state system in which the lower state is assigned an energy equal…

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Q: Calculate the change in entropy when 25 kJ of energy is transferred reversibly and isothermally as…

A: Click to see the answer

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Q: What is the value of change in entropy at standard state and 25 degrees Celsius that accompanies the…

A: Recall the given reaction C + CO2 → 2 CO So, change of enropy for this reaction is-…

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Q: starting from the definition of Gibbs Free Energy, the 1st law of thermodynamics, the 2nd law of…

A: To derive the criteria for spontaneity for Gibbs free energy.

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Q: What is the change in entropy in a large mass of water at 50 °C when it receives 155 kJ of energy in…

A: Answer is explained below. Given that, the change is reversible and the mass of water is large…

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Q: (a) What is the maximum electrical work obtainable from the reaction | 0,(g) + H,(g) = H,O(1) %3D…

A: In a reversible reaction, very less amount of heat is lost and thus such reactions are highly…

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Q: The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78 J/(mol K). However,…

A: Solution In this question we use Third Law of Thermodynamics it tells us that as T → 0 K, S → 0.…

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Q: A process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

A: Given: Change in entropy (∆S) = 128 J/mol•K Absorbed heat=54 kJ/mol =54×103 J/mol To determine…

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Q: The entropy change ΔS for a phase transition equals ΔH/T, where ΔH is the enthalpy change. Why is it…

A: Click to see the answer

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Q: Determine the entropy change for the combustion of liquid ethanol, C2H5OH, under standard state…

A: Click to see the answer

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

A: For monoatomic ideal gas CV = (3/2)R Change in entropy is given as follows ∆S = -R [n1lnx1 +…

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

A: Click to see the answer

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Q: What is the molar change in entropy (in J/mol-K) associated with the melting of ice at 1 atm if the…

A: Entropy is the measurement of randomness .It can be calculated as below for different processs

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Q: Question attached

A: Given: Temperature=298K Formula: The standard entropy of the reaction can be calculated by using the…

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Q: The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0°C to 560°C,…

A: Since the units of Temperature to be subsitutited in the Cp equation is not given in question. hence…

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Q: If you have an enthalpy change of -102.2 kJ mol-1 at a temperature of 200C, determine the change in…

A: Given: Change in enthalpy = -102.2 kJ mol-1 Temperature = 20°C

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Q: Calculate the change in entropy that occurs in the system when 47.2 g of isopropyl alcohol (C3H8O)…

A: Formula : ∆Sfreezing =∆HfreezingFreezing point temperature =-5.37×103 J(-89.5 +273.15)…

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Q: For a reaction, ΔHrxn = -107 kJ and ΔSrxn = 285 J>K. At what temperature is the change in entropy…

A: Click to see the answer

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Q: What is the chemical significance of a positive Gibbs free energy change and what is the chemical…

A: The amount of energy available for doing some useful work is termed as free energy or Gibbs free…

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Q: 4. Calculate the change in entropy if 3 moles of a gas undergo an isothermal, reversible expansion…

A: Entropy is a measure of randomness of system due to excess of energy in it In isothermal condition…

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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) =…

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Q: Create a system that shows the third law of thermodynamics and how it relates to the concept of…

A: Click to see the answer

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Q: Why is the standard entropy of a substance in the gas state greater than its standard entropy in the…

A: In chemical thermodynamics, entropy is the measure of the randomness in the system. The more the…

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Q: Why is the standard entropy of a substance in the gas state greater than its standard entropy in the…

A: Entropy is a measure of disorderliness. Intermolecular distance between the molecules in a gas is…

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Q: Why is the standard entropy of a substance in the gas state greater than its standard entropy in the…

A: The intermolecular force between gas molecules is less than the intermolecular force between liquid…

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Q: Which substance would have the greatest standard molar entropy? N2(g) NO2(g)

A: Click to see the answer

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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…

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Q: If an ideal gas at 1.75 atm and 25 degrees Celsius is isothermally compressed from 800 mL to 150 mL,…

A: Initial volume of the gas, V1 =800 mL Final volume, V2 = 150 mL Calculation of initial moles of the…

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Q: Consider the reaction: I2(g) + Cl2(g)2ICl(g) Using standard absolute entropies at 298K, calculate…

A: Click to see the answer

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Q: Calculate the standard state entropy of formation for H2O gas and of H2O liquid. Why is the entropy…

A: Solution: Standard entropy values at 25 deg. C for reference

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Q: A reaction has AH = -112 kJ and ASan = 354 J/K. At what temperature is the change in entropy for the…

A: The given data contains, ∆H°reaction=-112 kJ∆S°reaction=354 J/K

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Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2HgO(s) → 2Hg(l) + O2(g)…

A: Standard entropy change is the difference of standard entropy of product from standard entropy of…

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Q: A cup of rather dilute hot tea initially at 140 degrees F is served to a customer at Howard…

A: Mass of tea = 200g = m Initial temp = Ti = 140°F = 60°C Final temp = Tf = 100°F = 37.7°C Specific…