n a constant volume ‘Otto cycle’, the pressure at the end of compression is 12 times that at the start, the temperature of air at the beginning of compression is 38°C and maximum temperature attained in the cycle is 1950°C. Determine the heat added to the

Q: Air is expanded from 320 psia and 500°F to 100 psia and 50°F. Assuming constant specific heats,…

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Q: Refrigerant-134a is throttled from the saturated liquid state at 800 kPa to a temperature of -20°C.…

A: Given data: Pi=800 kPaTi=-20°C Need to determine the pressure and quality of the refrigerant at the…

Q: What is the difference between entropies of oxygen at 160 kPa and 39°C and oxygen at 160 kPa and…

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Q: A gas initially at 850 mm Hg is compressed polytropically in an Engine. During the process, the…

A: According to Bartleby guidelines, we can solve only one question at a time. You are requested to…

Q: 2 kg of air contained in a piston-cylinder assembly undergoes a process from the initial state of ?1…

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Q: 2. Steam at a temperature of 300°C has a specific volume of 0.09765 m³/kg. Determine the pressure,…

A: Given       Temperature, T = 300oC  Specific volume, v = 0.09765 m3/kg Find  Pressure, P Specific…

Q: Q.2.) A piston-cylinder device contains 0.8 m3 of Air at 300 kPa and 400°C. Air is now allowed to…

A: Given data Specific heat at average temperature is Assume air as the ideal gas.

Q: Calculate the change in entropy per kg of air when it expands isothermally from 8 MPa to 4 Mpa.

A: The given data are: P1=8 MPaP2=4 MPa Here, P1, and P2 represent the initial and final pressure.

Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 39 0C and 97…

A: This is the very basic question of thermodynamics and used concept is entropy change of ideal gas…

Q: 4. Steam at a temperature of 210°C has a specific entropy of 7.1167 kJ/kg.K. Determine the pressure,…

A: According to the problem, the steam is at a temperature of 210oC. From the saturated steam tables,…

Q: (B) Determine the following properties for Superheated water vapor at 30 bar and 440 °C (i) Specific…

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Q: 1 kg of saturated liquid water at 85 C (degree Celsius) is being heated until it becomes saturated…

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Q: 2.3 QUESTION 2 The steam is now heated at constant pressure until the enthalpy Superheated steam at…

A: Given data: T1 = 400°C                    specific volume = v1 = 0.1511 m3/kg Enthalpy after heating…

Q: At inlet, in a steady flow process, 1.3 kg/s of nitrogen is initially at reduced pressure of 2 and…

A: Given Datam=1.3 kg/sT=1.3TcrT=1.7TcrCP=1.0039 kJ/kgK

Q: Question 1 A mass of 0.7 kg of air undergoes two reversible processes in a piston-cylinder device as…

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Q: Q3// In a nozzle air at 700°C and twice atmospheric pressure enters with 50 m/s velocity, and leaves…

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Q: Determine the units of the quantity sbar/Ru, where sbar is the molar specific entropy and Ru is the…

A: This problem is related with the basic thermodynamics and units of molar specific entropy and…

Q: question 3 above is c hat is the final tem v of the steam in this

A: Given data P1 = 2800 kPa P2 = 4700 kPa T = 390 degree C Specific enthlpy, specific volume and…

Q: There are two masses of finite size in contact with a constant thermal reservoir. Initially, the…

A: Consider a subsystem 1 having an  incompressible fluid of mass mh ,specific heat ch and initial…

Q: Octane is heated in a heat exchanger under constant pressure of 10 bar from 200 K to 400 K. Use the…

A: Introduction Entropy is a point function, which means that the value of entropy only determines the…

Q: One kg of air initially at 7 bar pressure and 360 k temperature expands poly tropically (pvL2 =…

A: Step 1:

Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 27 0C and 97…

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Q: Question 3 A 2.21 kg of air at 23.27 C underwent an isobaric process wherein its initial volume of…

A: Given Data: Mass of the air, m=2.21 kg Initial temperature, T1=23.27 degrees Celsius

Q: A 2.21 kg of air at 22.46 C underwent an isobaric process wherein its initial volume of 1.73 m3 was…

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Q: A1 m° vessel contains saturated vapor water at 100 kPa. The vessel was cooled to 70°C. The…

A: Saturation temperature @ 0.1 MPa is 99.606 Celcius, fruther cooling will be come liquid Saturated…

Q: air enters an ideal nozzle at a pressure of 45 psig with a temperature of 1,340F. The pressure at…

A: Given        Pressure,P1 = 45 psig = 310 kPa                      P2 = 14.925 psia = 103 kPa…

Q: a) A freely-moving piston-cylinder device contains 0.4 m³ or air at 300 kPa and 57 °C at its initial…

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Q: 6. Steam flowing in a pipe at 18 bar is reduced to a pressure of 1 bar and 125 °C through an orifice…

A: Introduction: Orifice plates are one of the most widely used devices for measuring and controlling…

Q: If one kg of air initially at a temperature of 165°C and pressure of 7 bar is heated at constant…

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Q: During a reversible process, 2.85 kg/s of gas rejects 322 kJ/s of heat isothermally at 25°C. For…

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Q: PROBLEM 3. In a constant volume process, 1.5 kg of air is cooled from 1,200 °K. KJ Change in entropy…

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Q: Required information Two kilograms of saturated water vapor at 600 kPa are contained in a…

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Q: emperature for both stages is the same Determine the intermediate pressure (as a function of the…

A: introduction: we have to find out intermidiate pressure for minimum work

Q: Superheated steam, 0.270 kg,0.270 kg, at a temperature of 250 ∘C250 ∘C and an unknown pressure is…

A: Write the given data. m=0.270 kgT1=T2=250 °CQloss=105 kJTsurr=27 °C

Q: Steam at 5 bar and 450 °C is contained in a rigid vessel of volume 2 m3. The vessel is cooled until…

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Q: At the beginning of a cycle using air, the pressure, volume and temperature are 550 kN/m 2 , 0.025 m…

A: The given values are- P1=550kPa , V1=0.025 m3, T1=288 KT2=477 K, T3=393 K, T4=288 K,  Cp= 1  kJ/kgK…

Q: 3. A piston-cylinder assembly initially contains 3 kg of water at 75 kPa and pressure at 50 °C. Then…

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Q: Air undergoes a process where T₁= 200 °K and T₂ = 1200 ºk. Determine the change in specific enthalpy…

A: Given data, Air is working fluid T1 = 200 K T2 = 1200 K Find change in specific enthalpy = h2 - h1

Q: 4. An ideal gas at 270c and pressure of 1atm. Is comressed isothermally from a volume of 2 m3 to…

A: Given:Temperature of ideal gas, T1=27o CPressure of ideal gas, P1=1 atminitial volume before…

Q: Starting with the First Law of Thermodynamics, derive the complete expression for the change in…

A: The expression for the 1st law of thermodynamics is given as, dQ=du+dWdQ=du+pdv Here, du is the…

Q: Describe the equilibrium condition in terms of the entropy changes of a system and its surroundings.…

A: Given Data⇒Equilibrium condition in terms of the entropy changes of a systemProblem…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.