12. Which of the following reactions would be expected to have a positive entropy change, ΔrS° > 0? 1. 2 SO2(g) + O2(g) → 2 SO3(g) 2. Ba(OH)2(s) → BaO(s) + H2O(g) 3. CO(g) + 2 H2(g) → CH3OH( )

Q: 1)Which substance has the higher entropy?a) dry ice (solid CO2) at –78 OC or CO2(g) at 0 OCb) liquid…

A: 1. CO2(g) at 0oC has higher entropy than dry ice at -78oC, because gas has higher entropy due to its…

Q: Which of these reactions is expected to be spontaneous at all temperature?          (A

A: We have to tell which reactions is expected to be spontaneous at all temperature

Q: For ammonia (NH3), the enthalpy of fusion is 5.65 kJ/mol and the entropy of fusion is 28.9 J/K·mol.…

A: Answer- Enthalpy- Enthalpy is the amount of internal energy contained in a compound whereas entropy…

Q: Which of the following has the highest entropy (all at 65.0℃)?

A: Entropy(S) is defined as degree of randomness or disorderness and it is highest for gases and lowest…

Q: Methanol is relatively inexpensive to produce. Much consideration has been given to using it as a…

A: ∆SCH3OH = 126.8 kJ/mol ∆SCH4 = 186.264 kJ/mol ∆So2 = 205 kJ/mol

Q: Which one of the following processes produces a decrease in the entropy of the  system?  A. boiling…

A: Entropy of the process increases when- The randomness of system increases and the system is…

Q: certain substance has an enthalpy of fusion of 4.73 kJ/mol and an entropy of fusion of 21.2 J/mol/K.…

A: We know ∆H=∆S×T ∆H=4730j/mol ∆S=21.2j/mol/k So T=4730÷21.2=223.11k

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: For each of the pairs of substances listed below, CIRCLE the substance that you expect to have the…

A: Entropy of the substance measure the degree of randomness. Entropy is represent by symbol S. Entropy…

Q: Which of the following statements best describe the entropy change of this reaction CO(g) + H2O(g) →…

A:

Q: Which substance has the higher entropy?(a) dry ice (solid CO2) at -78°C or CO2(g) at 0 °C(b) liquid…

A: Entropy is defined as the degree of randomness or disorderliness of the System.   if the molecules…

Q: SO3 + H2O -> H2SO4 Is this chemical reaction spontaneous or non- spontaneous? Fast or slow?

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Which process should show the greatest increase in entropy? Select one: a. N,(g) + 0,(g) 2 NO(g) Ob.…

A: Entropy of a system depends upon the mass of the system. Mass of the system is directly proportional…

Q: How many of the following processes below exhibit a positive entropy change? I.    methane (g)  +…

A: Welcome to bartleby !  Introduction :  We have to tell reaction in which entropy change is positive…

Q: entropy change

A:

Q: Which of the following factors can result in an increase in the entropy of a system? 1. an increase…

A: The entropy is the degree of randomness . More is the randomness , more is the entropy . Temperature…

Q: Which of the following has the highest entropy (all at 100.0℃)? a. H2O (l) b. none - all of these…

A: d.  H2O (g)  Will have highest entropy at 100°C

Q: Does

A: 1- If temperature is constant but pressure will changed then entropy is inversely proportional to…

Q: Suppose a compound could point in any of three directions in the solid and still have the same…

A: • This problem is based upon the third law of thermodynamics.  • This law can be given as, Total…

Q: 1. Which of the following will have the greatest standard molar entropy (S°)? a. Hea b. H2Om c.…

A: The randomness of molecules in scientific terms is called entropy. The molecules that are free to…

Q: 5.sl9 ähäi Predict which of the following substances has the highest entropy value at 25°C Mg0 (s) O…

A:

Q: For a chemical reaction to be spontaneous only at low temperatures, which of the following…

A: For any reaction to be spontaneous, the value of ΔGo i.e DGo of the reaction should be -ve. Hence…

Q: HCI(9) and HCI(aq) Match the words in the left column to the appropriate blanks in the sentences on…

A: Entropy is a thermodynamic property that accounts for the randomness or disorderness in the system.…

Q: 6. Which of the processes will lead to a positive change in the entropy of the system? a.…

A: Answer: Entropy is the measure of system's disorderliness or randomness. In more possible states…

Q: Which of the following reactions results in an increase in the entropy of the system? A) CH₄(g) +…

A: When degree of randomness of products is greater than reactants they result in an increase in…

Q: Which reaction results to a decrease in the entropy of the system? O 4 NH3 (g) + 5 02 (2) → 4 NO (g)…

A: The entropy is the measure of degree of randomness in a molecule.

Q: Which substance will have the highest molar entropy at 25oC?   A. C4H10(g)   B. CO2(s)   C.…

A: Solution: We know that, Molar mass of gas is directly proportional to absolute entropy. In above…

Q: At 25 oC, which of the following substances has the least molar entropy? A. N 2(g) B. C 6H 6(l) C.…

A: Given,        Four substances are given  -                                    A. N2 (g)  B. C6H6 (l)…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2H9O(s)→2H9(1) + O2(g) What…

A:

Q: The heat of vaporization of carbon disulfide, CS2, at 25℃ is 27.2 kJ/mol. What is the entropy change…

A: For a phase change, entropy change is given by,

Q: The entropy will usually increase when I. a molecule is broken into two or more smaller molecules.…

A: Entropy can be defined as the randomness or disorderness. Higher the number of gaseous molecules,…

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

A:

Q: 5. Which of the following substances has the greatest standard molar entropy at 25 °C? a) Na (s) b)…

A:

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: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up…

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction…

Q: Which of the following sets of systems are in order of increasing entropy? A B C H₂(g), HBrO (g),…

A:

Q: When a reaction is exothermic and the products have more entropy than the reactants, the reaction is…

A: A reaction is said to be spontaneous when its ΔG value is negative.  ΔG = ΔH - TΔS ΔG is the change…

Q: Which of the following has the highest entropy (all at 500.0℃)? a. Ne (g) b. Xe (g) c. Kr (g) d.…

A: Entropy varies with molar mass.

Q: Calculate the change in entropy that occurs in the system when 23.0 g of isopropyl alcohol condenses…

A:

Q: Which of the following reactions would be expected to have a negative entropy change, ΔrSo  > 0?…

A: Entropy is a thermodynamic state function that describes the degree of randomness or chaos. It is…

Q: G

A:

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: The energy produced by a spontaneous reaction is often used to provide the energy to drive…

A: The amino acid combination can be depicted as:

Q: Methanol is burned as fuel in some race cars. This makes it clear that the reaction is spontaneous…

A:

Q: Which of the following has the highest entropy (all at 500.0℃)? Select one:   a. none - all of these…

A: The degree of randomness of a substance is called entropy.  Greater the randomness of molecules of a…

Q: Which of the following processes shows a decrease in entropy of the system? Select one: O a. 2…

A: Entropy is the randomness or disordnerness of the system. ∆S= ∑SP-SR1. If ∆S= +ve ⇒Entropy…

Q: 4) Melting point of zinc is 425°C. Standard entropy of zinc at 25°C is 40 J/molK. What is the change…

A: Change in entropy of zinc from 25°C to 725°Ccan be calculated in three cycles and in end all the…

Q: What major factor leads to a decreasein entropy as this reaction takes place?

A: A measure in disorder of system (or) degree of randomness is Entropy. The given chemical reaction…