Why is ΔSᵥₐₚ of a substance always larger than ΔSբᵤₛ?

Q: Which of the following samples of substances is likely to have the largest entropy? 1 mol KCI(aq) 1…

A: The gas phase has highest entropy followed by liquid. Solids have lowest entropy.

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

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Q: Classify the possible combinations of signs for a reaction's Δ?ΔH and Δ?ΔS values by the resulting…

A: The Gibb’s free energy change is expressed as:

Q: For a particular chemical reaction DH = 6.8 kJ and DS = –29 J/K. Under what temperature condition is…

A: Gibbs Helmholtz Equation: Is the equation denoted by,…

Q: If the helium was open to the atmosphere and you heated it from 25°C to 100°C, would the change in…

A: the change in entropy will be larger  than heating it in a sealed box.

Q: At body temperature, many proteins have a well-defined structure that is essential to their…

A: To find the sign of enthalpy and entropy of denaturation of protein.

Q: Two systems, each composed of two particles represented by circles, have 20 J of total energy. Which…

A: The system which has greater entropy has to be given and the reason has to be explained.

Q: Which of the following is the best example of a positive change in entropy? O A) The mixing of two…

A: Entropy is the degree of randomness or disorder. If randomness increase then entropy will also…

Q: For each pair of substances, choose the one that you expect to have the higher standard molar…

A: The species entropy is dependent on the species molar mass, species molecular complexity as well as…

Q: Does someone know the standard entropy values in J/K for H2(g), F2(g) and HF(g)?

A: The standard entropy values of hydrogen and fluorine gases are 130.6 J/Kmol and 202.8 J/Kmol…

Q: Which of the following processes are spontaneous?(a) A satellite falls to Earth. (b) Water…

A: A spontaneous process occurs by itself (possibly requiring an initial input of energy) whereas a…

Q: Given Δ H system = -144 kJ and Δ S system = -36.8 J/K for a reaction,determine the lowest…

A: Condition for spontaneous reaction is ΔGsystem < 0 . Formula  ΔGsystem = ΔHsystem - TΔSsystem  0…

Q: At 25°C, a reaction undergoes an enthalpy change of −27.0 kJ mol^−1 and an entropy change of 27.0 J…

A: Enthalpy change (∆H) = -27.0 KJ mol-1 ...Or because 1KJ = 1000 J    .....so, -27.0 KJ mol-1 × (1000…

Q: Determine the entropy difference between solid and liquid states for a substance melting at 100 °C…

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Q: (a) Can endothermic chemical reactions be spontaneous?(b) Can a process be spontaneous at one…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Which substance would have the smallest standard molar entropy? NO2(g) N2(1) N2(g) NO2(1)

A: Entropy is determined by checking the state of phase . In which state material is available .

Q: 8. Predict the sign of the change in entropy for the condensation of steam to liquid water. 9.…

A: Entropy means randomness. The higher the randomness of the system, the higher will be its entropy.…

Q: Match the words in the left column to the appropriate blanks in the sentences on the right. Reset H…

A: We will fill in the blanks with appropriate answers from left column

Q: What are the signs of ΔH, ΔS, and ΔG for the spontaneous condensation of a vapor to a liquid?…

A: The reactions that occur on their own and do not need any external help for the reaction to take…

Q: At 25 °C the formation of NH, (g) has a positive AS" systom. Is this reaction spontaneous or…

A: Given: ∆Ssystemo=+180 J/K T = 25oC ∆HfoN2g=0 kJ/mol∆HfoH2g=0 kJ/mol∆HfoNH3g=-45.9 kJ/mol

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: Under what conditions does an increase in temperature turn a nonspontaneous process into a…

A: For a spontaneous reaction, ∆G (change in Gibbs free energy) must be negative.

Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…

A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are…

Q: 37. Without doing any calculations, determine the signs of AS and ASur for each chemical reaction.…

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Q: Which of these processes are nonspontaneous? Are the nonspontaneous processes impossible?a. a bike…

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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: With two dice, each numbered 1–6, there are two possible ways to roll a 3. and Thus, for the outcome…

A: The possible ways to roll a 4 is given below

Q: Explain the difference between macrostates and microstates?

A: Macrostates and microstates are two chemical concepts which is involved in thermodynamic system. The…

Q: What is the precise definition of entropy?

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

Q: Suppose that two systems, each composed of two particles repre- sented by circles, have 20 J of…

A: Given data: Two systems, each compound of two particles, represented by the circkes have 20 J of…

Q: What is the entropy when a system goes from 4 microstates to 5 microstates? 3.08 x 10-24 O -3.08 x…

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Q: Determine whether an example is spontaneous process (SP) or a non-spontaneous process (NSP). 6. ball…

A: A spontaneous process is a process which occurs without input of matter or  energy into the system.…

Q: For each pair of substances, choose the one that you expect to have the higher standard molar…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: For a particular reaction, Δ?∘=67.7 kJ/mol and Δ?∘=126.9 J/(mol⋅K). Assuming these values change…

A: Given : ΔHo of reaction = 67.7 KJ/mol = 67700 J/mol…

Q: What are the signs of ΔH, ΔS, and ΔG for the spontaneous conversion of a crystalline solid into a…

A: Conversion of a crystalline solid into gas requires addition of energy.  A reaction that absorbs…

Q: Is the standard free-energy change, ∆G°, always larger than ∆G?

A: solution;   ∆Go not always larger than ∆G,

Q: Which process results in an entropy change less than 0?

A: Entropy (s) :-  Entropy is a measure of randomness or disorderness present in the system If in a…

Q: Which of the following processes are spontaneous andwhich are nonspontaneous: (a) the ripening of a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Is the formation of acid rain spontaneous or non-spontaneous at 50°C?

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Q: A mathematical interpretation of First Law of Thermodynamics is: O a. Q=ART O b. Q=AU + A C. Q=RT

A: Given  First law of thermodynamics

Q: What are the sign and magnitude of the entropy change for the reaction? Does the sign of Δ

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: For each reaction with ΔH = + 245 kJ/mol and ΔS = + 48 J/molK ,at what temperature at which the…

A: The question is based on the concept chemical thermodynamics.   We have been given entropy &…

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.

Q: describe the behavior of the entropy of a substance as it changes phase from solid to liquid to gas

A: Increasing order of entropy : Solid < Liquid  < Gas Entropy will increase when solid converts…

Q: Given the values of ΔH and ΔS, which of the following changes will be spontaneous at constant T and…

A: Given :  ΔH = 125 kJ ΔS = 15.0 J/K T = 300. K

Q: Which Substance would have the greatest standard molar entropy?   N2(I) NO2(I) NO2(g) N2(g)

A: To find: The substance having the greatest standard molar entropy N2 (I) NO2 (I) NO2 (g) N2 (g)

Q: Entropy. Consider the reaction below. 2 CO(g)O2(g) 2 CO2(g) a) 4. ΔΙοχη -566 kJ Calculate the…

A: (a)The entropy change in the surrounding after a chemical reaction at constant temperature and…

Q: Which expression defines the change in free energy? a. ΔΗ + ΤAG c. ΔΗ-TAS b. ΔΗ+TAS d. ΔS-ΤΔΗ

A: We have to predict correct statement for change in free energy.

Q: An endothermic reaction proceeds spontaneously. What can you deduce about the sign of Delta S for…

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…