A sample of carbon dioxide that initially occupies 15.0 dm3 at 250 K and 1.00 atm is compressed isothermally. Into what volume must the gas be compressed to reduce its entropy by 10.0 J K-1?

Q: The molar entropy of argon (Ar) is given by Sm= 36.4 + 20.8 In T (in SI units). Calculate the change…

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Q: 1.00 g of H2, 2.00 g of N2 and 2.00 g of CO2 at 25 °C and 1 atm were mixed isothermally, assuming…

A: The calculation of entropy after mixing of ideal gases isothermally can be calculated as:

Q: The enthalpy of vaporization of benzene at 1 atm and its normal boiling point 353 K is 30.8 kJ/mol.…

A: The enthalpy of vaporization of benzene is 30.8 kJ/mol. The boiling point of benzene is 353 K.

Q: A sample of Hydrogen is confined to a cylinder fined with a piston of 10 cm? cross-section. It…

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Q: Consider the reaction: H2(g) + C¿H¿(g)–→C¿H&(g) Using standard absolute entropies at 298K, calculate…

A: Entropy is defined as the randomness of the reaction. It is a thermodynamic quantity that measures…

Q: A monatomic perfect gas at a temperature T; is expanded isothermally to twice its initial volume. To…

A: Given: The initial volume is (V1) = V; The final volume is (V2) = 2 V Initial temperature is (T1) =…

Q: Estimate the increase in the molar entropy of O2(g) when the temperature is increased at constant…

A: Given: T1 = 298 K T2 = 348 K Cp = 29.355 J/K*mol

Q: Consider the reaction: CO(g) + Cl₂(g)COCI₂(g) Using standard absolute entropies at 298K, calculate…

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Q: Estimate the change in the molar entropy of N2(g) when the temperature is lowered from 298 K to 273…

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Q: Calculate the change in molar entropy when a sample ofargon is compressed from 2.0 dm3 to 500 cm3…

A: Molar entropy change of the gas: ∆S =2.303 Cv log T2T1+2.303 R log V2V1  ∆S =2.303 ×3  log…

Q: Calculate the change in entropy when 3.57 grams moles of neon (Ne) undergo isothermal expansion from…

A: In this question, we have to find out the correct answer of given problem by the help of Entropy…

Q: Calculate the change in entropy of a system when 2 mol water vapour at 150 ⁰C is cooled down to -10…

A: I have given the answer in the explanation section. Hope you  will understand that.

Q: Calculate the change in molar entropy of the system associated with transforming a supercooled water…

A: Initial state. Water at -10°C. To convert it into ice we will first take the water to 0°C and then…

Q: At 10 K Cp,m(Hg(s)) = 4.64 J K−1 mol−1. Between 10 K and the melting point of Hg(s), 234.3 K, heat…

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Q: Calculate the entropy change of the surroundings when 1 mol of a perfect gas expands isothermally…

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Q: What is the entropy change in the system when one mole of solid phenol sublimes at 18.85 degrees C…

A: Entropy (S) Entropy is the degree of randomness of a compound. For a system at equilibrium, the…

Q: 4. Calculate the change in entropy if 3 moles of a gas undergo an isothermal, reversible expansion…

A: Entropy is a measure of randomness of system due to excess of energy in it  In isothermal condition…

Q: The molar heat of combustion, A H;, of sucrose is -5643.4 kJ mol. If 0.250 moles of sucrose is…

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Q: Calculate the change in entropy when 10.00 g Ar is allowed to expand from 25 cm^3 to 100 cm^3 at 350…

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Q: Calculate the entropy change (in J/K) when argon at 25oC and 1.0 bar in a container of volume of…

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Q: Consider the reaction: СН (8) + H,0(g) →CH;CH,OH(g) Using standard absolute entropies at 298K,…

A: Given reaction is as follows,

Q: At 1.00 atm and 298.15 K, a solid substance with a molar volume of 100.15 cm3/mol with melting…

A: At 1.00 atm a solid substance with molar volume 100.15 cm3 / mol at it's melting temperature of…

Q: Calculate the change in entropy of the system when 10.0 g of ice at −10.0 °C is converted into water…

A: 1)10.0g of ice at -10°C is converted to ice at 0°C Number of moles 'n' = 10 g18.0 g/mole=0.56 moles…

Q: A sample of aluminium of mass 1.00 kg is cooled at constant pressure from 300 K to 250 K. Calculate…

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Q: Consider the reaction: 2H;(R) + O;(g)→2H;O(g) Using standard absolute entropies at 298K, calculate…

A: Interpretation: Using standard absolute entropies at 298K, the entropy change for the system when…

Q: For an isothermal and isobaric process that has AU = 100 kJ/mol, AH = 125 kJ/mol and AS = 225…

A: In thermodynamics, the Helmholtz free energy is a thermodynamic potential that measures the useful…

Q: The standard molar enthalpy of fusion for xenon is 2.30 kJ mol–1. Calculate the standard molar…

A: Given, molar enthalpy of fusion for xenon , = 2.30 kJmol Temperature =-112°C=(-112+273)K=161 K

Q: Consider the reaction: 4HCI(g) + 02(g)–→2H,0(g) + 2C½(g) Using standard absolute entropies at 298K,…

A: Given- Moles of HCl = 1.92 mole Reaction = 4HCl (g) + O2 (g)   →2H2O (g) + 2Cl2 (g) Temperature =…

Q: Derive a formula for the molar Gibbs free energy change

A: In this question we have to derive a formula for the molar Gibbs free energy change of a closed…

Q: Calculate the molar entropy of a constant-volume sample of argon at 250 K given that it is 154.84 J…

A: The molar entropy has to be given, A constant-volume sample of argon at 250 K given that it is…

Q: Perfect gas AS = nR ln(V/V,) Entropy of isothermal expansion

A: To prove this equation , we would use law of thermodynamics and perfect gas law.

Q: Consider the reaction: 2H₂O(1)→→2H₂(g) + O₂(g) Using standard absolute entropies at 298K, calculate…

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Q: Calculate the change of entropy in the system: Delta S of the surrounding=251 kJ/mol, Gibbs free…

A: It is considered that the given system and its surrounding are in thermal equilibrium, then…

Q: 7) The atomic heat capacity of solid Mo is given by the equation Cp = 5.69 + 1.88x10-3 T – 0.503x10s…

A: Given:       Atomic heat capacity of solid Mo is given by equation,   Cp=5.69 + 1.88×10^-3T -…

Q: Calculate the change in entropy when 4.00 g of nitrogen is allowed to expand from 500 cm3 to 750 cm3…

A: Entropy denotes the randomness of the particle as the randomness increase entropy also increase.

Q: 2. The molar entropy of argon (Ar) is given by Sm = 36.4 + 20.8 In T (in SI units). Calculate the…

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Q: Use the information give below to calculate the value of the standard molar entropy, So m of a solid…

A: This can be done using Hess's law of constant heat summation which also applies in case of entropy.

Q: The enthalpy of the graphite → diamond phase transition, which under 100 kbar occurs at 2000 K, is+…

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Q: Calculate the standard molar entropy for gas phase: (a) Ar (b) I2 (c) H2O at 298 K

A: Given: Temperature= 298 K To find: Standard molar entropy of: (a) Ar (b) I2 (c) H2O Formula:…

Q: Calculate the change in entropy of the gas when 4.00 g of nitrogen is allowed to expand isothermally…

A: The given data contains, mass of nitrogen gas = 4.00 g Volume (initial)=500 cm3Volume (final)=750…

Q: The molar heat capacity of trichloromethane (chloroform, CHCl3) in the range 240 K to 330 K is given…

A: Given: The molar heat capacity of trichloromethane is expressed as, Cp,m=91.47+7.5×10-2TK-1 Where,…

Q: Calculate the change in entropy of the gas when 15 g of carbon dioxide gas are allowed to expand…

A: Given data: given mass of CO2 = 15g Volume, V1 = 1.0 dm3 Volume, V2 = 3.0 dm3 Temperature, T= 300 K…

Q: Consider the reaction: 3-entro NHẠNO3(aq)N,0(g) + 2H20(1) Using standard absolute entropies at 298K,…

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Q: Consider the reaction: H,(g) + C¿H4(g) →C¿H(g) Using standard absolute entropies at 298K, calculate…

A: Solution - According to the question - Given reaction - H2 (g) +C2H4 (g)--------> C2H6 (g) Given…

Q: Consider the reaction: H,O21)2H,0(1) + O2(g) Using standard absolute entropies at 298K, calculate…

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Q: The Heat Capacity of a solid is CP = 125.48 J K−1. What is the change in its entropy if it is heated…

A: Heat capacity of a substance is defined as the amount of heat required to raise the temperature of a…