Calculate the change in entropy (in J K-¹) involved in heating 2 moles of an ideal gas from a volume of 100 L at 50°C to a volume of 150 L at 150°C. C₂ = 7.88 cal mol-¹ K-¹

Q: For the reaction shown below, determine the value of ΔSsurr at 345 K.Express your answer to 3…

A: The objective of the question is to calculate the change in entropy of the surroundings (ΔSsurr) for…

Q: The heat of vaporization AH, of methanol (CH;OH) is 35.3 kJ/mol. Calculate th

A: If   vapourisation of methanol       CH3OH(l)     ⇔  CH3OH(g)    △Hv = 35.3 KJ/mol     then…

Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…

A: ★ Answer : Reaction 2  is non spontaneous. ★ Explanation :

Q: ) True or False?  If false, correct the statement.        a) The entropy of a substance increases…

A: The entropy of a substance increases when a substance changes from liquid to vapor at any…

Q: What is the ΔS of 5 moles CO2 (g) heated at constant volume from 100 °C to 400 °C? The Cp,m of CO2…

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Q: Given the following values for the changes in enthalpy (∆H) and entropy (∆S), which of the following…

A: According to the second law of thermodynamics, a process will be feasible if change of entropy (∆S)…

Q: Calculate the free energy change for the following reaction at 26 °C: Express your answer in…

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Q: According to the second law of thermodynamics, what must be true about entropy changes when dry ice…

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Q: 8. For which of the following reactions will the entropy of the system decrease? a) CuSO. (s) + H20…

A: Entropy is the measure of randomness or disorderness of the system.  More is the randomness in the…

Q: Use the data from this table of thermodynamic properties to calculate the values of Δ?∘rxn for each…

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Q: ST3D.3- At constant temperature and pressure, what is the minimum mass [in g] of glucose needed for…

A: Answer: Value of gibbs free energy change is always equal to non-expansion work and over here…

Q: At 25 ∘C25 ∘C, the equilibrium constant for the reaction below is 0.0421.…

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Q: Calculate the change in entropy that occurs in the system when 1.00 mole of isopropyl alcohol…

A: Given data Number of mole of isopropyl alcohol : n = 1.00 mole Boiling point of isopropyl alcohol :…

Q: Calculate "work" and "change in internal energy" for the conversion of three moles of ethanol at 78…

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Q: Given the reaction:  CaCO3(s)  ??  CaO(s)  +  CO2(g), the entropy (ΔS) change for this reaction is…

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Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: For each of the following, predict whether the entropy of the system change will be positive or…

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Q: The first law of thermodynamics can be given as If two thermodynamic systems are each in thermal…

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Q: What is the change in entropy (positive, negative, or zero) for the system? H2O (l) --> H2O (s)

A: Entropy is the measure of randomness of the system.

Q: The vaporisation of a certain element at 24.0 oC has the following enthalpy and entropy values:…

A: Given,  Hvap = 3.40 kJ mol-1     Svap = 246 J K-1 mol-1. Temperature = 24.0 °c = 297 K Now, □Stotal…

Q: Consider the following reaction: SO2(g) + 1/2 O2(g) → SO3(g) Calculate ΔGorxn (in kJ) at 298 K.…

A: To determine delta G , first we will calculate deltaH and deltaS for reaction  . After that we will…

Q: Predict whether the entropy change of the system in 2 H2 (g) + O2 (g) —> 2 H2O (l) is positive or…

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Q: The heat of fusion ΔHf of methanol CH3OH is 3.16 /kJmol. Calculate the change in entropy ΔS when…

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Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56…

A: Molar heat of vaporisation of a substance is defined as the amount of heat absorbed by one mole of…

Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 59.4…

A: Change in entropy of universe is the sum change in entropy of system and surrounding.

Q: The vaporisation of a certain element at 23.0 oC has the following enthalpy and entropy values:…

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Q: Calculate the change in entropy that occurs in the system when 1.33 mol of acetone (C3 H6O)…

A: Given: The number of moles of acetone is 1.33 mol The normal boiling point is 56.1oC The heat of…

Q: Calculate the entropy of the equation below: 4 KCIO3(s) → 3 KCIO4(s) + KCI (s) KCIO3 = 142.97…

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Q: Observe the Figure 1.0 in which the influence of temperature to change in enthalpy, ∆H and entropy,…

A: The change in heat content associated with a chemical reaction is denoted by the term enthalpy…

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: value for ΔrS°, in units of J K-1‑mol-1 at 25 °C?

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Q: A cup of hot water is left to cool in a room at 20 °C. If the cup contains 400 g of water initially…

A: Given: mass of water = 400 g Specific heat of water c = 4.182 J K-1 g-1 Temperature change ΔT = (20…

Q: During a certain reversible process, the surroundings undergo an entropy change, ∆Ssurr = -78…

A: As per the thermodynamic concept, the entropy of universe is the sum of entropy of system and…

Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

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Q: Which of the following statements is correct? For a process to be spontaneous, the entropy of the…

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Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: ∆Hvap= 40.7 kJ/mol = 40.7 × 1000 J/mol Water boils at 100°C = 373 K For the vapourization of water,…

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: Consider the following reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Determine the standard…

A: Since, Entropy is a thermodynamic quantity. It measure the randomness. Thus,

Q: What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas…

A: Given that -  Number of moles of gas = 1  Initial volume of gas = 0.36 m3  Final volume of gas =…

Q: What is the change of entropy in the vaporization of 5 grams of ice cube at 0C to steam at 100 C.…

A: The degree of randomness of the system is called entropy. Specific heat capacity of water(c)=…

Q: Calculate the entropy change in surroundings when 1.00 mol of H2O (l) is formed under standard…

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Q: For the reaction 2 CO (g) + O2 (g) → 2 CO2 (g), the entropy change is expected to be negative. Is…

A: The given chemical reaction is as follows: 2CO (g) + O2 (g) → 2CO2 (g) The stoichiometry of the…

Q: In which of the following processes does the entropy of the system decrease? Select one: H2(g) +…

A: > In a chemical reaction if gaseous moles increases than entropy increase. > for gases if…

Q: Acetone, CH; COCH3 , boils at 56°C. The heat of vaporization of acetone at this temperature is 29.1…

A: Given: Boiling point temperature= 56 C=329.15 K Heat of vaporization= 29.1 kJ/mol