Which of the following exhibits a negative entropy change?    A. An ice cube melts on the table B. A lump of sugar dissolves in a glass of water C. A box of marble drops, and the marbles scatter on the floor. D. Fast moving vehicles halt and line up during red light.

Q: Comparing the formulas or states for each pair of substances, tell which you would expect to have…

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Q: Which of the following variables is not a state function?   a. Entropy   b. Heat   c. Volume…

A: Those thermodynamic property which depends on initial and final state of system not on the path…

Q: Predict whether the entropy change is positive or negative for each of the following descriptions.…

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Q: Atom V has one electron in its outmost period, while atom H has three. Write simple valence bond…

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Q: 18. Ice sublimes to gas 19. Water vapor condenses onto your window

A: Please find your solution below : Entropy of a system is defined as the measure of disorder or…

Q: Which one of the following processes produces a decrease in the entropy of the system? melting solid…

A: The solid substances have the minimum disorder, hence the entropy of the solid is minimum. The…

Q: Which one of the following processes would produce a decrease in the entropy of the system? a.…

A: We have given that  Which one of the following processes would produce a decrease in the entropy of…

Q: dentify which of the following processes will be spontaneous or nonspontaneous. 1. Driftwood…

A: Ans- spontaneous process- It is defined as the process which take place itself called spontaneous…

Q: All of the following statements about entropy are true EXCEPT for: I. it is a measure of the energy…

A: Given

Q: Which of the following processes will lead to an increase in the entropy of the system? (Circle all…

A: Entropy is a measurement of randomness or disorderedness in a system. Entropy of a state of a…

Q: Select the phase change that results in a positive sign for the change in entropy. A gas is…

A: The increasing order of entropy of the different states of matter:solid<liquid<gas

Q: The third law of thermodynamics is defined as     a. the combined mass and energy of the universe…

A: -> at absolute (0K) temperature all the modes of motion stops (no vibration , no translation and…

Q: In which is there a positive entropy change? A. Magnesium combusts in air to form Magnesium oxide B.…

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Q: It refers to how a circumstance can occur without the help of any external factors? a. Enthalpy O b.…

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Q: Which of the following is not a state function? a. density b. heat c. free energy d.  entropy…

A: State functions only depend initial and final state  and not depends on path Examples of state…

Q: Which has more entropy A. 2NO (g) + 02(g)  b. 2NO2(g)

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: For a spontaneous exothermic process, which of the following must be true

A: The given question tells that the reaction is spontaneous and exothermic

Q: he second law of thermodynamics favors     A. processes that have zero entropy of the universe…

A: The given problem is based on the laws of thermodynamics.

Q: explain the laws of thermodynamics, including the first, the second, and the third law of…

A: Thermodynamics is the branch of science that deals with the heat and other forms of energy like…

Q: Consider two equal-sized flasks connected as shown in the figure. probability that it will be in…

A: a) Probability of finding a molecule in flask 2 is 1/2

Q: Find the the ∆H°rxn if ∆G°rxn is 420 kJ/mol and ∆S°rxn is -143 J/mol*k *refer to the photo attaced.

A: Since there are multiple questions, we are authorized to answer only the first one, that is, no. 1.…

Q: Entropy, AS, and Gibbs Free Energy, AG, are both State Functions like AH and therefore can be used…

A: The measurement of how random the system under consideration is called entropy. The higher the…

Q: Why is free energy “free”? >

A: Free energy is denoted by the energy free to do work in a system.The various thermodynamic functions…

Q: During which of the following processes does the entropy of the system decrease?   A. Calcium…

A: Entropy of any substance is basically the measure of disorder of the substance  And the disorder of…

Q: Rank from lowest to highest entropy. A. 1 mol of CCl4 gas at 273 K and 40 L. B. 1/2 mol of liquid…

A: We need to Rank from lowest to highest entropy.   A. 1 mol of CCl4 gas at 273 K and 40 L. B. 1/2 mol…

Q: 6. A system has constant volume and heat around the system decreases by 1 kJ. Indicate the sign for…

A: Given: The heat of the system is decreased by 1 KJ at constant volume.

Q: Energy > The image below shows two configurations of a system of 4 particles. Energy levels increase…

A: We know that  Entropy S = Kb ln W Where W is the no of arrangement or no of microstate possible .…

Q: Radioactive decay  I.Occurs in unstable isotopes II. is not spontaneous  III. releases energy

A: Answer of the given question is shown below:

Q: 2 Question Balance the chemical equation. Based on the equation, how many grams of bromine are…

A: Here we have to determine mass of Bromine produced by the reaction 11 g of KBr in the following…

Q: 1. A potential chemical reaction at 25.0 °C has a ΔHrxn of 147.5 kJ and a ΔSrxn of -386.9 J/K. What…

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Q: which statement about entropy is true? non-spontaneous reactions sometimes will happen all by…

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Q: Date Period ne Entropy and Gibbs Free Energy In each of the following, is there an increase or…

A: Entropy is defined as degree of randomness in a system.

Q: Check the box under each compound that exists as a pair of mirror-image twins. If none of them do,…

A: Answer: Compound that has chiral center can have mirror image twin that can't be superimposed on it…

Q: Which process is accompanied by a decrease in entropy for the system? O a gasoline puddle evaporates…

A: Entropy measure randomness or disorderness of molecules Randomness increase, entropy also increased

Q: Experimental observations of a biochemical reaction have indicated that the reaction releases free…

A: For a reaction to be spontaneous, delta G should be negative.

Q: substance has the higher entropy?

A: Sample of pure silicon have less entropy becuz it's contains only one constituents while Si+P+B have…

Q: Sublimation is an example of a process for which a. ΔH is negative and ΔS is positive at all…

A: Sublimation is a process where a solid directly changes to a gas. We know the gas has much more…

Q: Please answer question A and B.

A: a) For a spontaneous process, entropy of the universe always increases. This is because the Sun, and…

Q: If this has a negative value for a process, then the process occurs spontaneously. A. Free energy…

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Q: you expect the entropy to increase or decrease? (These questions do not require calculations.) a.…

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