The second law of thermodynamics states that, like energy, the entropy of the universe is constant. O True O False

Q: Determine the entropy of * H₂(g) + Br2(g) → 2HBr (g)

A: Entropy measures the extent of the randomness of a system. It is represented by S. It increases with…

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 the entropy of the system increases during a reversible process, the entropy change of the…

A: The entropy change of the system depends upon the randomness. As the randomness of the system…

Q: Define entropy and state the second law of thermodynamics?

A: Entropy is a thermodynamic property which shows the inaccessibility of a system's thermal energy. It…

Q: he sum of the entropy changes of the system and the surroundings (∆SSYS + ∆SSURR) are:

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Q: Restate the first and second law of thermodynamics.

A: Thermodynamics is the branch of physical science that gives the relation between heat, energy,…

Q: Entropy is a physical property of matter that has few practical uses in chemical engineering and in…

A: Entropy is physical property of matter that has few practical uses in chemical engineering and in…

Q: Can a perpetual motion machine exists given the laws of thermodynamics?

A: Perpetual motion machine: It is an idealistic concept which moves indefinitely without any energy…

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

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Q: what is entropy?

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

Q: What is the precise definition of entropy? What is the significance of entropy being a state…

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

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: 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: Which of the following is a correct statement about the second law of thermodynamics? O All…

A: To define: The second law of thermodynamics.

Q: Why does the entropy of a gas increase when it expands into a vacuum?

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

Q: Why can endothermic reactions be spontaneous?

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Q: What is the chemical significance of a negative enthalpy change and a negative entropy change?

A: Enthalpy change is nothing but the amount of heat evolved or absorbed during a chemical reaction at…

Q: Explain the first law of thermodynamics and examples

A: Frist law of thermodynamics ∆U = Q+w

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: An explosion brings down an old building, leaving behind a pile of rubble. Does this cause a…

A: Given information,      An explosion brings down an old building, leaving behind a pile of rubble.

Q: Determine the entropy of * NH₂Cl(s) → NH3(g) + HCl(g) > positive negative

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Q: The second law of thermodynamics states that for a process to be spontaneous:         (A) The…

A: According to second law of thermodynamics, the overall entropy of the whole universe is always…

Q: What is the third law of thermodynamics? How does the third law relate to the calorimetric entropy…

A: Thermodynamics relates to the heat, temperature, and energy of chemical reactions. It studies the…

Q: In a spontaneous process, the entropy of the system always increases. True or False

A: The overall spontaneity of the reaction is determined by the Gibbs free energy change, (∆G) If the…

Q: Which of the following is the correct statement about first law of thermodynamics? O Frist law of…

A: According to first law thermodynamics,  energy can neither be created nor be destroyed.

Q: s) False Entropy changes in the system are primarily determined by heat flow in and out of the…

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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: Which of the following definitions correlate to the term spontaneous change? O Possible…

A: Spontaneous process: A spontaneous process is a process which occurs without any external input to…

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

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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: Laws

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Q: Explain the second law of thermodynamics and give examples

A: The second law of thermodynamics states that the change in energy from one form to another is…

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: according to the second law of thermodynamics which of the following statement is true for a…

A: Entropy term is the measure of disorder/randomness. According to second law of thermodynamics system…

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: Does the entropy of the system increase, decrease, or stay the same when the volume of a gas…

A: Entropy is the thermal energy of a system per unit of temperature. This energy is not available for…

Q: Paraphrase the first and second laws of thermodynamics

A: To define: First and second law of thermodynamics.

Q: TRUE OR FALSE According to the second law of thermodynamics Entropy of the universe decreases in…

A: According to second law of thermodynamics entropy of universe always increases or remain constant…

Q: Determine the entropy of * H2(g) + Cl2(g) → 2HCl (g) positive negative

A: Entropy is determined by change in entropy on going from reactant to product. Entropy change=…

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: 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…