Which of the following statement(s) is(are) correct? Group of answer choices A. The actual work is less than the theoretical work of expansion during irreversible adiabatic process. B. The actual work is less than the theoretical work of compression during irreversible adiabatic process. C. N D. The change in entropy is greater in irreversible adiabatic process compared to reversible adiabatic process. E. No heat transfer occurs during the expansion and compression in irreversible adiabatic process.

Q: Throttling valve accepts refrigerant R134a at temperature, pressure and enthalpy values of 25 C, 5…

A: Given Data T1=25°C P1=5 bar h1=268.3 kJ/kg

Q: Helium gas is compressed from 1 atm and 25°C to a pressure of 10 atm adiabatically. The lowest…

A: Write the expression of the compression ratio.

Q: An irreversible Stirling cycle containing 5.0 mol of a diatomic ideal gas goes through the following…

A: a) P-V diagram of the processes is The P-V diagram of the complete Stirling cycle is 1) Process…

Q: piston-cylinder assembly contains 1.2 kg of air at a pressure of 313 kPa and a temperature of 107°C.…

A: For solution refer below images.

Q: Find the enthalpy value at outlet?

A: Given, Enthalpy at the inlet of throttling = 293.5kJ/kg

Q: Super heated water vapor 1kg, 20 bar, heated from 240c to 280c closed system. How much heat is…

A: Given data: Pressure, P = 20 bar Temperature, T1 = 240°C Temperature, T2 = 280°C

Q: 3. Please consider a well-insulated compressor that was taking in an ideal diatomic gas at 1 atm and…

A:

Q: Consider a steam turbine that takes in water vapor at a pressure of p, = 10 bar and a temperature of…

A: Given Data→ ηT,s=0.83 T - S diagram of the process is given below

Q: 2.- A cylinder is divided into two halves by a conducting piston. The space to the left side of the…

A:

Q: 2. The work required to compress a gas reversibly according to pV1 30 = C is 67,790 J, if there is…

A: The work required to compress a gas is, W=-67790 J The exponential constant for the compression…

Q: Which is TRUE about the simplified entropy balance equation below? + masa – mbSp = m2s2 - m,s1…

A: ds/dt unsteady term is 0 in given expression. Therefore, it is steady state entropy balance…

Q: 2. A waste heat recovery boiler produces 4.8MPA (dry saturated) steam from 103 deg C feedwater. The…

A: Given: P=4.8 MPA (dry saturated steam )hg=2796 kJ/kgInitial temperature = 103°CThe mass flow rate of…

Q: 1-The velocity of the air entering an adiabatic Sole is 25 m/s, its temperature is 112°C and its…

A:

Q: The condition to be satisfied for producing biogas is O anaerobic and absence of water O anaerobic…

A:

Q: A change of state from state 1 to state 2 produces a greater increase in entropy when carried out…

A: The given statement is TRUE

Q: (a) How much heat flows from 1.00 kg of water at 38.2°C when it is placed in contact with 1.00 kg of…

A:

Q: An ideal gas,Cp=5/2 R and Cv=3/2 R, is changed from P1=1 bar and V1=12m^3 to P2=12 bar and V2=1m^3…

A: Given, Specific heat at constant pressure Cp = 5/2 =2.5 KJ/kg-k. Specific heat at constant volume…

Q: If the entropy change of an adiabatic, closed system process is positive, the process is which of…

A:

Q: What is true about the characteristics of steady flow systems? Select all that apply.  A.) There is…

A: Steady flow system is the system in which any process takes place such that properties (state…

Q: Wet saturated steam (x = 94.305 %) at 16 bar (hf = 859 kJ/kg, hfg = 1935 kJ/kg) reducing valve is…

A: GIVEN DATA-  AT 16bar . hf=859KJ/Kg, hfg=1935KJ/Kg , x=94.305% AT 8bar . hf=721KJ/Kg , hfg=2048…

Q: Two piston'eylinders each contain 1 mol of an ideal gas. System 1 expands isothermally and…

A: Givenquestion 11 mol ideal gas expands isothermallyprocess 1from 3 bar and 350K to 1bar  with no…

Q: Consider a steam turbine that takes in water vapor at a pressure of p, = 10 bar and a temperature of…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which one of the following statements are true? A. In an ideal fluid, entropy decreases with time.…

A: A: From the second law of thermodynamics, the total entropy of closed system increases with time. B:…

Q: With a pressure of 120 kPa and a temperature of – 24°C, 0.19 liters of refrigerant 134a is turned…

A: The problem refrigeration can be solved by

Q: 13. Vertical lines on T-S diagram represents adiabatic process * False True

A:

Q: (a) pressure at state b (b) pressure at state c (c) the net work done by the engine each cycle (d)…

A:

Q: he second law of thermodynamics relates to? A. enthalpy B. entropy C. free energy D. heat

A: Given Data : Second law of thermodynamics

Q: A sample of 2.00 mol of helium is expanded at constant temperature of 273.15 K from 5.0 L to 20.0 L…

A:

Q: Exergy of a Flow Stream: Flow (or Stream) Exergy.

A: The work potential of any energy source is the  maximum amount of energy we can extract or harness…

Q: Select one correct answer from the statements below. Assume T₁ and T₁ as the absolute temperatures…

A: given  = multiple choice question

Q: What is the enthalpy of refrigerant 134a at a temperature of – 8 °C and a pressure of 360 kPa?    a)…

A: It is required to determine enthalpy of R134a at 360 kPa and-8°C

Q: Air is drawn into a gas turbine working on constant pressure cycle at 1 bar, 21 ℃ and compressed to…

A:

Q: In a closed feedwater (FW) heater, a mixture enters the heater with a mass flow rate m1 and enthalpy…

A: Mixture enters heater with a mass flow rate = m1 Enthaply of enter of mass 1 = h1 Enthaply out of…

Q: For dry saturated steam the value of specific entropy is equals to  a. zero b. sg c. sf d. sfg

A: For saturated liquid the entropy is represented with sf For wet steam, the entropy is represented…

Q: Mollier chart is a. Entropy-Pressure chart of steam b. Entropy-Volume chart of steam c.…

A: Mollier chart : The mollier chart plots thetotal heat against entropy, describing the enthalpy of a…

Q: Find an appropriate expression for the change in entropy in the following two cases: 1) S=S(TV) 2)…

A: Given: Temperature = T Pressure =P Volume =V Cv =sp. heat at constant volume CP = sp. heat at…

Q: and closed when the pressure is the same as the distribution line pressure. What is the final…

A: Given  T = 125 °C = 398 K  Cp = 5.1926 KJ/Kg  We know  Final Internal energy in tank = initial…

Q: The entropy in the triplet state at normal atmospheric pressure is zero I) true 2) Error

A: Correct answer: True

Q: n moles of air are contained in a closed system at a temperature of 300 K, pressure of 1.5 bar and…

A:

Q: Second law steady state: Steam at 5 MPa and 600°C enters an insulated turbine operating at steady…

A: As per given question  Pressure p1=5mpa Temperature T1=600°c Pressure p2=50kpa We have determine…

Q: b. Prove the following two themodynamic property relationships ). Where: T. P. V are temperature,…

A:

Q: Which of the following statement(s) is(are) correct? ON No heat transfer occurs during the expansion…

A: To select the correct options.

Q: 2. An ideal gas (Cv= 5/2R) with a pressure of 5.5 atm and a volume of 25 L has a temp of 525K. It…

A: Given data, Gas is an ideal gas. Value of R = 0.287 kJ/kgK Cv value is Cv=52RCv=52×0.287Cv=0.7175…

Q: C. Air (ideal gas) is contained in a piston/cylinder arrangement, that can exchange heat with a…

A:

Q: 3. In the steady flow throttling process, the enthalpy of the exit stream is. the enthalpy of the…

A: It is required to determine correct answer

Q: EXPLAIN THE THE DECREASE OF EXERGY PRINCIPLE AND EXERGY DESTRUCTION.

A: Given Data⇒ DECREASE OF EXERGY PRINCIPLE  EXERGY DESTRUCTIONProblem definition⇒Problem says EXPLAIN…

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.