The entropy change for the process H2O(s)⟶H2O(l) is 15.2 J/K and requires that the surroundings transfer 38.6 kJ of heat to the system. Calculate the change in entropy for the universe in kJ/K at 76.3 °C.

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…

Q: methanol, CH3OH, vaporizes at 25°C is 35.4 kJ/mol. What is the entropy change (in J/K) when one mole…

A: Given,   □Hvap = 35.4 kJ/mol T = 25 °c = 298 K □S = □H/T   = 35.4 ×1000/298 = 118.79 J/K-mol

Q: Given the following values for the changes in enthalpy (∆H) and entropy (∆S), which of the following…

A: According to the second law of thermodynamics, a process will be feasible if change of entropy (∆S)…

Q: Combustion of glucose (C,H,0.) is the main source of energy for animal cells: C,H1206(s) + 60,(8) –…

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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: A system contains 859 particles and has 4.43 x 1025 possible configurations. What is the entropy of…

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Q: What is the entropy change when 307 J of energy is reversibly transferred to a sample of water at…

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Q: Under standard conditions the absolute entropy of liquid water is (H2O(l)) = 69.91 J K-1 mol-1 .…

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Q: What is the change in entropy when 0.125 mol of potassium freezes at 67.2°C (Hfus = 2.39 kJ/mol)?

A: Freezing point, standard enthalpy of fusion and standard entropy can be related by the equation…

Q: What is the significance of entropy being a state function?

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Q: A reaction has ΔH °rxn = -112 kJ and ΔS °rxn = 354 J/K. At what temperature is the change in entropy…

A: The quantity of energy that is absorbed inside the system at a given temperature during a particular…

Q: What is the change in entropy when 0.200 mol of potassium freezes at 63.7°C (H(fus)=2.39 kJ/mol)?

A: Entropy is a state function and it gives a measure of randomness in a system.Change in entropy is…

Q: What is the significance of the change in Gibbs free energy (ΔG) for a reaction?

A: In thermodynamics free energy or Gibbs free energy is the energy that is used to express the total…

Q: maximum amount of work

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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.…

Q: Under what circumstances does entropy of a system decrease for a spontaneous process

A: For any  spontaneous process, the value of Gibbs free energy change i.e ΔG should be -ve And since…

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

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Q: Consider the general reaction at 26 degrees C: 2 A + 1 B → 3 C + 2 D ΔH reaction = -1,899 kJ…

A: Entropy is the measure of disorder or randomness of a system. The free energy change is given by,…

Q: The entropy change for the process                                      H2 O(s) ⟶ H2 O(l)is 22.1 J/K…

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

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Q: What is the application of standard Gibbs free-energy to processes and reactions What is its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

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: What is the entropy (S) of a system with 6.4 x 1020 microstates?

A: The relation between entropy and number of microstates is given by Boltzmann's equation - S = KB ln…

Q: Combustion of glucose (C H,0) is the main source of energy for animal cells: CH1206(s) + 60,(g) 6…

A:

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: What is the entropy of the process when 0.6831 moles of N 2 gas are compressed from 54.42 L to 28.11…

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

A: The unit of temperature is not mentioned therefore i am using kelvin. Data given: T2 =800K, T1…

Q: represents the change in entropy for a system going from 142 possible microstates to 830 possible…

A: In Boltzmann's definition the entropy is the total numbers of possible microstates. the Boltzmann's…

Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C, and its molar enthalpy of vaporization is…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: What is the significance of the change in Gibbs free energy (∆G)for a reaction?

A: The significance of the change in Gibbs free energy (∆G)for a reaction: (i) If ∆G for a reaction…

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…

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: Does the entropy of the surroundings increase for spontaneous processes?

A: The entropy is a measure of randomness of a system. In a spontaneous process, the entropy of the…

Q: How does the entropy of ice at −5°C diff er, if at all, from its entropy at −50°C?

A: Entropy- Entropy is a thermodynamic property. Entropy determines tendency of process. Tendency means…

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)…

Q: Use the data from this table of thermodynamic properties to calculate the maximum amount of work…

A: Dear student, you have not provided the data table link, but I am solving the question based on…

Q: The enthalpy for a certain process is 146.4 kJ/mol and the entropy for the process is 463.6 J/K.  At…

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Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

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…

Q: Combustion of glucose (C6H12O6) is the main source of energy for animal cells: C6H12O6(s)+  6O2(g)→…

A: The given combustion reaction is - During the combustion of 1 mole of glucose, 2872 kJ energy is…

Q: Why do exothermic processes tend to be spontaneous at low temperatures? Why does their tendency…

A: According to second law of thermodynamics,

Q: Q.6 The standard enthalpy of combustion of solid urea (CO(NH2)2) is -632 kJ mol at 298 K and its…

A:

Q: What is the entropy of a system that has only a single microstate?

A: Entropy is defined in the terms of randomness that a system possess or the disordered state. Change…

Q: Calculate the entropy change of the surroundings in J K-1.

A: The entropy change of the surrounding is needed to be calculated.

Q: Estimate the change in the entropy of the universe due to heat escaping from your home on a cold…

A: Entropy is a measure of randomness. The change in entropy of the universe will be given by adding…

Q: In a certain spontaneous process, the system undergoes an entropy change of 4.2 J>K; therefore,…

A: For a spontaneous process, the entropy of a system is less than the entropy of surroundings.