A reaction will always be spontaneous if the change in enthalpy is (positive or negative) and the change in entropy is (positive or negative).

Q: Directions: Calculate the standard entropy change for the following reaction using the table of…

A: The standard entropy change (∆S°) of a reaction can be calculated from standard entropy values of…

Q: The combustion of gasoline is a spontaneous process. If this reaction proceeds spontaneously, why…

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Q: a spontaneous process increass the entropy of ? the system the surroundings  the universe  None…

A: Answer is option (c) entropy of the universe increase

Q: The rusting of iron is spontaneous and is accompanied by a decrease in the entropy of the system…

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Q: Consider reaction of Hydrogen with Oxygen to form liquid water.  What is the statndard molar entropy…

A: The reaction taking place is given between hydrogen and oxygen to produce water. Hence the reaction…

Q: In a particular spontaneous process, the entropy of the system decreases. What can you conclude…

A: Spontaneous process: In thermodynamical terms, a spontaneous process is a process in which…

Q: Which of the following involve an increase in the entropy of the system? Briefly explain how…

A: Since you have posting multiple parts, the answer for first three parts are given below. Kindly…

Q: Discuss the Free Energy under Nonstandard Conditions?

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Q: kind of Compound Entropy is Small. give Example In What

A: First, we will discuss the meaning of the concept of entropy. The entropy can be elaborated as the…

Q: The law of thermodynamics states that every spontaneous process moves towards greater entropy.…

A: First law:  energy can't be created or destroyed. Second law :  The entropy increases for any…

Q: State the third law of thermodynamics. How is it interpreted in a microscopic thermodynamic sense?

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Q: Which of the following is TRUE for a spontaneous process? Ο ΔΗΤAS

A: In this question we have to tell the condition for the spontaneous process.

Q: The vaporization of a liquid at a certain temperature and pressure is spontaneous. For this process,…

A: As the vaporization of a liquid at a certain temperature and pressure is given as a spontaneous…

Q: If the difference between the enthalpy of the products and that of the reactants is positive and the…

A: A spontaneous reaction is a reaction that favors the formation of products at the conditions under…

Q: A reaction has values of AH and AS which are both positive. The reaction * Is spontaneous O…

A: When ∆H and ∆S both are positive then reaction is ---

Q: In a particular spontaneous process, the number of microstates available to the system decreases.…

A: The statement given is "In a particular spontaneous process, the number of microstates available to…

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: 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: Two ideal gases under same pressure and temperature are allowed to mix in an isolated system – what…

A: SOLUTION: Step 1: In an isolated system, during mixing of gases, there is no exchange of energy or…

Q: All things trend toward disorder. When cups of hot milk are left on the table for a long period of…

A: Suniv > 0, where Suniv is the change in the universe's entropy. Entropy is a measure of a…

Q: For a reaction, the enthalpy change is -210 kJ, the entropy change is -170 J/mol.K and the…

A: We have given that  For a reaction, the enthalpy change is -210 kJ, the entropy change is -170…

Q: The enthalpy change for a reaction can be calculated using the formation enthalpies of the products…

A: Each chemical reaction is associated with the donation or acceptance of a certain amount of energy.…

Q: The condition necessary for a reaction to be spontaneous at all temperatures is?

A: For a reaction is to be spontaneous the change in Gibbs free energy should be negative.  Now, ∆G =…

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: For all spontaneous processes, the Entropy of the Universe ∆Suniv always is :

A: Entropy is used to describe the disorder. It is the amount of arrangements possible in a system at a…

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: Neither the change in enthalpy nor the change in entropy is, by itself, sufficient to determine…

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Q: For a reaction that has ∆H of -30 kJ and ∆S of -62 J/K, estimate at what temperature will the…

A: ∆G = ∆H - T∆S…

Q: You are observing a reaction and discover that the reaction vessel is warm to the touch.  The…

A: Interpretation: We have to tell whether the reaction is spontaneous or not.

Q: Do you need to specify the temperature to calculate the entropy change? Explain.

A: Entropy is the measure of randomness or chaoticness . With increasing in the randomness or…

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: 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: Is the entropy of a bag of popcorn greater than, less than, or equal to the entropy ofthe kernels of…

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Q: State the 3rd law of thermodynamics. How is it interpreted in microscopic thermodynamic sense?

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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: if the enthalpy change is negative and the entropy change is positive this reaction would be

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Q: How does the entropy of the surroundings change duringan exothermic reaction? An endothermic…

A: Entropy of surrounding will increase during an exothermic reaction because heat is absorbed by…

Q: For a certain process that occurs at constant T and P, the value of ∆G is positive. Is the process…

A: A spontaneous reaction is accompanied by decrease in enthalpy (negative ∆H) and increase in entropy…

Q: What is entropy, and what is ΔS for a reaction, and what does it mean if ΔS is positive or negative?

A: Answer  The measurement of randomness is called entropy, entropy…

Q: For which of the following reactions will the entropy of the system decrease?

A: Entropy is a thermodynamic quantity, which is the measure of randomness in a system.  . Greater the…

Q: Do you need to specify the temperature to calculate the entropy change?

A: The entropy change can be  calculated using the formula, Where,∆H standard enthalpy of formation…

Q: Which one of the following would have the largest molar entropy?

A: Molar entropy is the randomness or disorderedness of 1 mole of a substance. The molar entropy of…

Q: What do you mean by the term "Entropy?" How can use the entropy to explain spontaneous process? If…

A: Entropy is a thermodynamical term, which is thermodynamical state function, it measures the…