Question 18 The entropy chnage of the surroundings is inversely related to the temperature. O True O False

Q: Determine the sign of entropy change (+∆S or -∆S): a. Expansion of gas b. CaCO3(s) → CaO(s) + CO2(g)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: According to the question about the formation of ammonia we have, The Change (decrease) in the…

Q: 10. What is the sign (positive or negative) of the entropy change (AS) for each of the following: a.…

A: Given :-  a) H2O(l) → H2O(g)   b) N2(g) + 3H2(g) → 2NH3(g)  To determine :-  Sign for ∆S for given…

Q: che standard entropy change to c

A:

Q: Which of the following is true about the total entropy of the universe? A) It is always increasing…

A: Which of the statement is true about total entropy of the universe ?

Q: Indicate whether each statement is true or false. (a) The entropy of the universe increases for any…

A: (a) The spontaneous process is a process that starts on its own without any external effort.…

Q: 6. Calculate AS°univ, and state whether the reaction occurs spontaneously at this temperature.…

A: We only answer one question from the multiple questions with sub-parts. Please resubmit the question…

Q: AS° for the reaction shown is equal to -667.8 (J/mol-K). Use the information given in the table to…

A: Given,

Q: What is the entropy change when 0.88 moles of CHCI: vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: Number of moles = 0.88 moles  ∆H(vap) = 29.6 KJ/mol  Temperature = 61.0 °C  Entropy change = ?

Q: Calculate the standard entropy change for the reaction ; CO2(g) + H2O( l) →   CH4(g) + O2(g)…

A: Given   Reaction  CO2(g) + H2O(l) →   CH4(g) + O2(g)   Standard entropy change = ?

Q: Calculate AS° for the following reactions, using standard entropy values from the table below. a.…

A: Given :-  NH4Cl(s) → NH3(g) + HCl(g)  Species         S° J/(mol-K)  NH4Cl(s)         94.86 NH3(g)…

Q: B. Predict whether AS is positive or negative for the reaction: N2(g) + 02(g) → 2NO(g) C. Which has…

A: Entropy of reaction :-       It is the degree of randomness of the reaction. In the isolated system…

Q: Calculate the entropy of the equation below: CaCO3(s) → CO2(g) + Cao (s) CaCO3(s) = 92.9 J/K.mol…

A: The balanced chemical equation is: CaCO3(s)  ---->CaO(s) + CO2(g)

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: The entropy for one mole of a substance at 1 atm pressure, usually determined at 298.15 kelvins is…

A: Entropy measure randomness or disorders of the molecule STP means standard temperature is 298.15 k…

Q: QUESTION 15 At constant pressure, what is the value of entropy change? nRln C p -dT T

A: We have to find the value of entropy change at constant pressure

Q: At high temperatures, ammonia decomposes to N2 and H2:  2NH3 (g)= n2(g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: Which best describes the entropy change for the following process? 2 SO2(g) + O2(g) → 2 SO3(g) А.…

A: We know that, Entropy measure randomness. Gas having more randomness than solid and liquid.

Q: The sign for the change in entropy is positive for ...

A: Entropy is basically a molecular disorder or randomness. Solid has less entropy than liquid. Liquid…

Q: 5) Find the molar entropy of vaporization (in J/(K-mol)) for a certain substance given that to…

A:

Q: b. Thermodynamics Circle the correct choice or fill in the blanks in each of the following: f. Which…

A: All the given problems are related to the chemical thermodynamics. Entropy is a measure of…

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: What is the entropy change when 0.17 moles of CHCI, vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: When a liquid changes into the gas at its boiling point the entropy of the system increases.

Q: What is the entropy when 1.40 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A: Recall the given values moles of CCl2F2 =1.4 molesheat of vaporization of CCl2F2∆Hvap=17.2…

Q: 9. For any substance, the only case entropy has a zero value, when *

A: The third law of thermodynamics :  The law states that the entropy of a purely and perfectly crystal…

Q: What is the entropy when 1.20 moles of CCLF2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Entropy change at constant temperature is given by  where ΔS = entropy change  Q = heat transferred…

Q: Question 9 Determine if the photosynthesis reaction is spontaneous at 80°c. Chemical Equation: CO2 +…

A: Calculate enthalpy of the given reaction-- CO2 + H2O ----> C6H12O6 + O2

Q: What is the entropy when 1.35 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A:

Q: Gibbs free energy in chemistry is symbolized G. It is related to the enthalpy (H) and entropy (S)…

A:

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

A:

Q: the decomposition of ammonia to nitrogen and hydrogen gas. Substance S° (J/mol · K) H2(g) 130.7…

A: Entropy measures the randomness of the molecule. Gaseous molecule have higher entropy than liquid…

Q: What is the entropy when 1.34 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A:

Q: What is the expected entropy change for this reaction? CI CI Cl AI -ci- Me CI Al CI +. CH, CI CI O…

A: Entropy measures randomness. If randomness increases entropy will increase

Q: QUESTION 19 Which of the following compounds has the highest molar entropy (all are gases): NO,…

A: Molar entropy of a substance increase with increase in the molar mass. So, calculate molar mass of…

Q: B. Entropy 5. Which of the following are A. Entropy and B. Entropy and

A:

Q: What is the molar entropy of pure oxygen gas at 25 °C? O Equal to zero O Less than zero Greater than…

A: According to third law of thermodynamics at absolute zero temperature entropy of pure crystalline…

Q: For the following process, does entropy increase, decrease or remain the same: H20 (s) --> H2O (1) O…

A: Entropy is a measure of randomness, disorder of a system. Entropy, the measure of a system's thermal…

Q: Without referring to a data table, arrange the compounds from highest to lowest standard molar…

A: The entropy of a system measures the randomness of the system, that is, the system with higher…

Q: Calculate the entropy change when graphite burns in sufficient supply of oxygen as shown in the…

A: Cgraphite(s) + O2(g) ------> CO2(g)

Q: 9. Which of the following statements best describes the entropy of water that freezes in a beaker?…

A:

Q: 1point You got a new lego set on your birthday and you build an air plane. The change in the entropy…

A: 3 1 pont You got a new lego set on your birthday and you build an air plane. The change in the…

Q: What is the entropy when 1.26 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A:

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: Number 7 please

A: Dear student I have given answer to your question in the image format.

Q: The Third Law of Thermodynamics: The entropy of a perfect crystal at zero Kelvin is zero.  True…

A:

Q: How does the entropy of the system change for the following chemical reaction? CO2 (g) → C (s) + O2…

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

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…

Q: C,H,OH(1) ħas a higher entropy value than C,H,OH(g). A) True B False Question 8 Which of the…

A: Entropy is a measure of randomness. Since solids are highly ordered and gases are highly disordered.…

Q: Arrange the entropy for 1 mole of H2O in ascending order at the following conditions C1. (S, 0°C, 1…

A: Entropy of gas is greater than entropy of liquid and entropy of liquid is greater than entropy of…