What is the precise definition of entropy? What is the significance of entropy being a state function?

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

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Q: If enthalpy is +220 kJ for a reaction and entropy is +120 J, at what temperature is this…

A: The spontaniety of any reaction is decided by the Gibb's free energy change if the reaction. Any…

Q: How Gibbs free energy is determined by the volume of the substance ?

A: To find: relation between Gibbs free energy and volume?

Q: Based on its fundamental definition, explain why entropy is a measure of energy dispersion.

A: The entropy of state is related to the number of ways to arrange the components of the system have…

Q: Define importance of second law of thermodynamics and knowing entropy

A: There are four laws of thermodynamics such as zeroth law of thermodynamics, 1st law of…

Q: What molecular property does entropy reflect?

A: ENTROPY Entropy is the measure of disorderness or randomness of the system. It is a thermodynamic…

Q: The entropy of a system always increases for a spontaneous process. O TRUE O FALSE

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Q: List the ways in which we can interpret entropy at the molecular level?

A: The ways in which we can interpret entropy at the molecular level has to be given,

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

A:

Q: Which thermodynamic quantities are not a state function?

A: Both path and state functions are frequently faced in thermodynamics. A thermodynamic property whose…

Q: what is entropy?

A: Entropy(S)- Entropy is a thermodynamic property. Entropy determines spontaneity of process.…

Q: How does entropy predict the spontaneity of any process in the environment?

A: The measurement of the disorderedness of the system is defined as entropy. For example; the melting…

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: How does the molar entropy of a substance change with increasing temperature?

A: The randomness of the system is measured by the term, called entropy. The entropy of a system is an…

Q: Determine the entropy change for the combustion of gaseous propane, C3Hg, under the standard…

A:

Q: Which of the following is a correct statement about the third law of thermodynamics ? O The entropy…

A: Thermodynamics is the branch of science which deals woth the study of energy changes and their…

Q: How many microstates are present in a system with an entropy of zero?

A: The entropy (S) and microstates(W) are related by formula : S = kB ln(W)  Here , kB = Boltzmann…

Q: If energy can flow in and out of the system to maintain a constant temperature during the process,…

A: Given, If energy can flow in and out of the system to maintain a constant temperature during the…

Q: Under what circumstance can the entropy of a system decrease for a spontaneous process

A: The entropy tells the randomness present in the system due to its disorderness created in the system…

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: What happens to the entropy of a sample of the matter when it changes state from a solid to a…

A: Entropy of a system is defined as the measure of randmnoss,or disorder. Entropy is an extensive…

Q: Determine the entropy change for the combustion of gaseous propane, C3H8, under the standard…

A: Entropy refers to measure of disorder and randomness. For a reaction, standard entropy change of…

Q: How do you predict the entropy of a gas will change if a 2.0 L sample of that gas is compressed to a…

A: The entropy of a system is defined as the measure of randomness between the particles present in a…

Q: Are the earth and sun in thermal equilibrium? Are there entropy changes associated with the…

A: 1. The earth and the Sun are not in the thermal equilibrium. As sun is much hotter or is having…

Q: What happens to the entropy of an isolated system during an irreversible process?

A: For isolated system, there is no exchange of heat or energy between system and surrounding.  Hence,…

Q: Entropy is the randomness of a system. At the molecular level, entropy can be described in terms of…

A: Since you have asked multiple questions, we will solve the first question for you as per our…

Q: How can we use Chemical Thermodynamics to explain different processes involving entropy?

A: Entropy : It is the measure of the total randomness  of the molecules or molecular disorder in a…

Q: b. How are the internal energies of chemical substances changed in a chemical reaction? State and…

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Q: 2.1. For the isothermal expansion of a gas into a vacuum, (a) Is this a spontaneous process? (b)…

A: a. During this constant temperature or isothermal, expansion into a vacuum, the gas does no work (w…

Q: Under what circumstance can the entropy of a system decrease for a spontaneous process?

A: Entropy measures the degree of randomness in the system. When a substance changes its phase solid to…

Q: For which of the processes does the entropy of the system increase?

A: The disorderness or randomness present in a molecule is termed as its entropy.

Q: How do enthalpy and entropy relate to each other? If enthalpy is negative, does that mean that…

A: To measure spontaneity, both the terms, enthalpy and entropy, cannot be used individually that is…

Q: What is the molar entropy of a pure crystal at 0 K? What is the significance of the answer to this…

A: The third law of thermodynamics states that entropy of a pure crystal at a temperature of zero…

Q: Explain in molecular terms why the entropy of a gas increases (a) with volume, (b) with temperature.

A: (a) The dispersion of energy and matter in the system indicates the entropy. By increasing volume…

Q: According to the second law of thermodynamics for any spontaneous process, the entropy of the…

A: To find: For a spontaneous process, the entropy of the universe

Q: What are the criteria for spontaneity(a) in terms of entropy and(b) in terms of free energy?

A: The Gibbs free energy is an important parameter to predict the feasibility of a process. The entropy…

Q: Not all processes in which the system increases in entropy are spontaneous. How can this observation…

A: Second law of thermodynamics states that the entropy of an isolated system always increases but it…

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: Explain the significance of entropy

A: ANSWER IS

Q: According to the third law of thermodynamics, at what temperature will entropy become zero? A. 0°…

A: Third law of Thermodynamics- The entropy of a perfectly crystalline solid approaches zero as the…

Q: Calculate the change in entropy

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Q: In biology the equilibrium equations that keep living organisms alive are called homeostasis. How…

A: Homeostasis is the condition in living organisms where the equilibrium equations that keep loving…

Q: Explain Thermodynamic Processes?

A: The four types of thermodynamic process are isobaric, isochoric, isothermal and adiabatic.

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…