In constant temperature, closed system process, 120 BTU of heat is a transferred to the working fluid at 80F. What is the change of entropy of the working fluid, KJ/kg-K?
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Q: 120 liters of acetylene (ρ = 1.05 kg/m³ @ 25 ⁰C) is heated from 25 ⁰C to 350 ⁰C at constant…
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Q: 850 g of gaseous benzene (MW = 78.11 g/mol) is heated from 30 ⁰C to 1,150 ⁰C at constant pressure.…
A: Given, Mass of benzene, m = 850 g Molecular mass of benzene, = 78.11 g/mol Number of moles, n =…
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Q: A 102 mole of monoatomic ideal gas at pressure 6×10°Pa and volume 5.1m and temperature 300K. The gas…
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A: Since, you have asked multiple question, we will solve the first question for you. If you want any…
Q: Assume that solutions of ethylbenzene : benzene behave ideally. a) Calculate the entropy of mixing…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: (a)At 0 oC, liquid water and ice are in equilibrium at standard pressure, so they have the SAME…
A: Given: P1 = 1.0 bar , P2 = 100 bar, T = 0 oC, Molar mass of water = 18 g mol-1 Mass density of ice =…
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Q: P3B.7 A block of copper of mass 500 g and initially at 293K is in thermal contact with an electric…
A: Given, mass of copper is 500 g A current of 1.00A is passed for 15.0 s For Cu Cp,m = 24.4…
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Q: A liquid solution of LiCl in water at 25 °C (298.15 K) contains 1 mol of LiCl and 8 mol of water. If…
A: Interpretation - To tell about the heat effect when a liquid solution of LiCl in water at 25 °C…
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Q: 1 mol super cooled liquid water transformed to solid ice at -10 oC under 1 atm pressure. a)…
A: SOLUTION: Step 1: the conversion of supercooled liquid water into ice is an irreversible process.…
Q: 2. Calculate the change in entropy of the system when 15.0g of ice at -12.0C is converted to water…
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Q: For each system listed in the first column of the table below, decide (if possible) whether the…
A: Here we have to determine change of entropy of the system in the following processes .
Q: In the process you design, benzene is used as a solvent. You needed the following information for…
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Q: a) Find the entropy change associated with melting pure ice at T=273.15K, P=20 bar. b) What is the…
A: Melting of pure ice can be represented as: H2O(s)→H2O(l)…
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Q: Twenty grams of nitrogen gas at 45oC and 1 atm pressure is mixed adiabatically with 10 grams of…
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Q: A. Consider a simple one component system of n moles, with internal energy, U, and volum The entropy…
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A: Calculation of number of moles :Ideal Gas Equation:
Q: A 25.0 g mass of ice [H2O (s)] at 273 K is added to 150.0 g of H20 (1) at 360 K at constant…
A: Molar mass of water = 18 g/mol Moles of ice = 25 / 18 = 1.4 moles Moles of water = 150 / 18 = 8.3…
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A: Introduction: Entropy measure the randomness of the system. It basically measure the amount of…
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A: An isolated and closed system is considered, it means neither energy nor mass is exchanged with…
Q: Exactly one mole ideal gas with a constant pressue heat capacity of 32.1 J/mol-K goes from 298K and…
A: Introduction They have asked us to calculate Entropy of the gas for that Particular process.…
Q: 450 g of gaseous benzene (MW = 78.11 g/mol) is heated from 40 ⁰C to 1,050 ⁰C at constant pressure.…
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Q: 1 mol of ammonia gas and 3 mol of methane are mixed in a 3 L container at 20oC. What is the entropy…
A: The randomness of of a system is known as entropy.
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Q: Q5:- The value of entropy (in meV/K units) when the general mode weight of the assembly is 1600,…
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Q: What is the change in Entropy of 1mole of He in the following process He (298 k,1 bar) He(100 k,10…
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Q: 6. A 10 kg copper block has an initial temperature of 800 K. It is placed in a well-insulated vessel…
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A: The formula relating the temperature change, heat capacity and entropy change is shown below:
Q: 5. Consider a lattice gas of N particles distributed cells (with N < V). Suppose that each cell may…
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Q: For each system Risted in the first column of the table below, decide (if possible) whether the…
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- 7.33 Ammonia gas is compressed from 21°C and 200 kPa to 1000 kPa in an adiabatic compressor with an efficiency of 0.82. Estimate the final temperature, the work required, and the entropy change of the ammonia.120 liters of acetylene (ρ = 1.05 kg/m³ @ 25 ⁰C) is heated from 25 ⁰C to 350 ⁰C at constant pressure. Determine the change in entropy (in J/K). Assume constant specific heat capacity throughout the process.P3B.7 A block of copper of mass 500 g and initially at 293K is in thermalcontact with an electric heater of resistance 1.00 kΩ and negligible mass. Acurrent of 1.00A is passed for 15.0 s. Calculate the change in entropy of thecopper, taking Cp,m = 24.4 JK−1mol−1. The experiment is then repeated with thecopper immersed in a stream of water that maintains the temperature of thecopper block at 293K. Calculate the change in entropy of the copper and thewater in this case.P3B.8 A block of copper (Cp,m = 24.44 JK−1mol−1) of mass 2.00 kg and at0 °C is introduced into an insulated container in which there is 1.00molH2O(g) at 100 °C and 1.00 atm. Assuming that all the vapour is condensed toliquid water, determine: (a) the final temperature of the system; (b) the heattransferred to the copper block; and (c) the entropy change of the water, thecopper block, and the total system. The data needed are given in ExerciseE3B.7a.
- Application of the first law of thermodynamics to combustion process (HW) Q1) A constant volume tank contain 1 mole of C7H14 and 12 mole of O2 gas at a temperature of 25 oC and 1 bar. The contents of the tank is ignited and C7H14 is burned completely and final products temperature is found to be 1700 K. Determine the heat transfer during this process. ( take ΔHO = -47800 kJ/kg).A 1 mol quantity of hydrogen gas sample was heated at constant pressure from a temperature of 300 K to 500 K. With the entropy transformation process as a function of temperature variation, the heat capacity equation at constant pressure was estimated , Cp = 6.9469 - 0.199 x 10-3 T + 4.808 x 10-7 T2 (J K-1mol-1). Determine the entropy change of the process.In the process you design, benzene is used as a solvent.You needed the following information for equipment design. These featurescalculatea. Molar volume of liquid at 1 bar and 5 oCb. Molar volume of steam at 4 bar and 172 oCc.When benzene is heated and compressed from 1 bar and 5 oC to 4 bar and 172 oCwhat is the change in molar enthalpy, entropy and internal energy
- Assume that solutions of ethylbenzene : benzene behave ideally. a) Calculate the entropy of mixing if 40 g of ethylbenzene is mixed into 50g of benzene.b) At room temperature (298 K), what is ΔmixG for mixing 40g of ethylbenzene (PhEt) and 50g of benzene (PhH)?c) Would you notice a temperature change associated with the process in parts a) & b)?d) Instead, you mix 40g of benzyl alcohol (PhMeOH) into 50g of benzene (PhH). Let’s denote the difference between this process and the process in part b) as: ΔΔG = ΔmixG [PhMeOH ∶ PhH] − ΔmixG [PhEt ∶ PhH] What do you expect the sign of ΔΔG to be? (ΔΔG<0, ΔΔG≈0, or ΔΔG>0)Briefly justify your answer.Exactly one mole ideal gas with a constant pressue heat capacity of 32.1 J/mol-K goes from 298K and 22.0 L to 398K and 32.0L. Calculate the change in entropy of the gas for this process.1 mol super cooled liquid water transformed to solid ice at -10 oC under 1 atm pressure. a) Calculate entropy change of the system, surrounding and universe. (temperature of the environment is -10 °C) b) Make some comments on entropy changes from the obtained data Please use the following data for water : Melting entalpy of ice (ΔHmelting) at 0°C and 1 bar is 6020 J mol-1. Cp (H2O (s)) = 37,7 J mol-1 K-1 Cp (H2O (l)) = 75,3 J mol-1 K-1
- nitrogen is being withdrawn from a cylinder of 0.15 m3 at a rate of 10 mol/min. the cylinder contains pressure at 100 bar and temperature at 170k. the cylinder is isolated and has no heat exchange with the surrounding. how many moles of nitrogen are ther in cylinder at any time and what will be the pressure and temperature of the gas in the cylinder after 50 min for each of the following cases. also find the residual entropy change and residual enthalpy change at given temperature and pressure conditions for each of the following cases. a. assume nitrogen to be ideal gas b. assume nitogen to be a vander waal fluid c.assume nitrogen to follow the peng robinson eosTwenty grams of nitrogen gas at 45oC and 1 atm pressure is mixed adiabatically with 10 grams of ammonia gas at 85oC and 1 atm to yield a mixture whose pressure is also 1 atm. Assuming the gases are ideal, calculate the total entropy (J/K) of mixing.A sample containing 2.05 moles of an ideal gas with CV = 20.1 J K-1 is initially at 3.84 bar and 300. K. It is compressed at constant volume until its pressure reaches 5.62 bar. Calculate the final temperature, work done, heat transferred, ΔU, ΔH and ΔS for the process.