9. Argon (Ar) amounting to 80 grammes expands isobarically (P = const) %3D until its volume doubles. Find the change in entropy during expansion. A) 18 J/K C) 26 J/K B) 22 J/K D) 29 J/K

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

A:

Q: "he heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy…

A:

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: TRUE or FALSE:  1 mole of Br2(g) has more entropy than 1 mole of Br2(liq

A: Entropy is a measure of degree of randomness of a system.

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: 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: For the reaction 2 H,(g) + 0,(g) → 2 H,O(g), which equation would be used to determine the entropy…

A: We have given that Reaction :                2H2(g) + O2(g)    →   2 H2O(g)      H2(g) = A…

Q: А. 2 H, (g) + 0,(g) 2 H,O(1) The entropy, ASixn, mol Angas has little or no change. decreases.…

A: The Δngas of any reaction is defined as, => Δngas = sum of number of gaseous molecules in product…

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: The Delta G for freezing of H2O(l) at -10 degrees C is -210 J/mol and the heat of fusion of ice at…

A: The entropy of a system can be calculated from Gibb's energy relation with enthalpy change. The…

Q: For each process predict the sign of the entropy change taking place. A. CaCO3(s) → CaO(s) + CO2(g)…

A: Entropy(S) is defined as the randomness or disorderness of the system. When entropy increases, then…

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A:

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: Use the following information to find entropy of the vaporization of Sn (tin). The boiling point…

A:

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

A:

Q: What is the entropy when 1.96 moles of CCI,F, vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C] |…

A:

Q: What is the entropy when 1.36 moles of CCl¿F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A:

Q: For water, which phase has the largest entropy? Ice-one, H20(s, crystalline) O Gas, H2O(g) O Liquid,…

A:

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: Calculate ∆ Go For the following reaction at 150o C. Is it spontaneous as written? (Hint: need to…

A:

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: 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: 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: g_2021 [References] Chloroform, CHC13, is a solvent and has been used as an anesthetic. The heat of…

A:

Q: The normal boiling point of C2Cl3F3 is 47.6 °C and its molar enthalpy of vaporization is 27.49…

A: The change in entropy in the system in J/K when 19.4 grams of C2Cl3F3 vaporizes to a gas at the…

Q: C. C,H,(g) + 30,(g) · 2 CO,(g) + 2 H,0(1) The entropy, ASxn, mol Angas increases. decreases. has…

A: Calculate change in mole and sign of entropy --

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: Which of the following have more entropy? Explain your reasoning! a. A deck of cards in order or a…

A: As the randomness of the system increases, the entropy of the system will increase.

Q: What is the entropy when 1.53 moles of CCl,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Number of moles of CCl2F2, ∆H(vap) and the temperature for which entropy is to be determined.

Q: Which system has the greatest entropy? (a) 1 mol of H2(g)at STP (b) 1 mol of H2(g) at 100 °C and 0.5…

A: Entropy is also a measure of the molecular disorder, or randomness, of a system. The entropy of an…

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: (Q67) What is the entropy change (in J/K) in the universe (ASuniverse) that occurs when nitrogen and…

A:

Q: Determine the sign of entropy change (+∆S or -∆S): a. Evaporation of a liquid b. Water freezes c.…

A: ***Note: Since you have posted a question with multiple subparts, we will solve the first three…

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

A:

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: What is the entropy change when 1.20 moles of CCl₂F₂ condenses at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Number of moles = 1.20 moles  Temperature = 25°C  ∆Hvap at 25°C  = 17.2 KJ/mol  ∆S of condensation…

Q: Which one has a large entropy? 0.0200 moles of NaBr dissolved in 2.00 L of water or 0.0200 moles of…

A: 0.0200 moles of CaCl2 dissolved in 2.00 L of water has a large entropy.  More number of particles…

Q: Please consider 0.15 gm of Constantan (a Cu/Ni alloy widely used in thermocouples, c = 390 J/•K-kg)…

A: 0.15 g of Constantan was cooled through exposure to the lab atmosphere.

Q: Propanol 1C3H7OH2 melts at -126.5 °C and boils at 97.4 °C. Sketch how the entropy changes as…

A: Entropy is the measure of the randomness of the system. The entropy of the system increases for the…

Q: What is the entropy when 1.36 moles of CCI,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A:

Q: 1. The heat of fusion for water is 333.6 J/g. What is the entropy change for the universe when 1.00…

A:

Q: ) The enthalpy of fusion; AH for benzene is 127.40 kJ/kg, and its melting point is 5.5°C. What is…

A:

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: First calculate the heat of vaporization for 1.30 mol chloroform at its boiling point.

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: 2. For each of the following pairs, choose the substance with the higher entropy permole at a given…

A: Entropy - It is defined as the measure of teh system's thermal energy per unit temperature that is…

Q: The Δ G   for the freezing of H2O(l)  at −10 °C is −210 J/mol and the heat of fusion of ice at this…

A: The entropy of the universe (△Suni) is defined as the sum of the entropy of system (△Ssys) and…

Q: What is the entropy when 1.13 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A: The moles of CCl2F2 is = 1.13 moles The temperature of vaporization is = 25oC = 25oC+273.15 = 298.15…

Q: Chloroform, CHC13 , is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: The entropy change (∆S) is related to heat of vaporization (∆Hvap) by following equation: Here, the…