Considering air as an ideal gas, a process can be engineered by which a certain quantity of air change from thermodynamic state a to final state b, as shown in the pressure versus volume diagram. According to the information provided by the diagram and knowing that Va = 0.070 m3,

Q: Three cubic meter of air at a pressure of 20 kPag and 20 0 C is compressed at constant volume to a…

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Q: i) Use the thermodynamic identity for a P-V-T system and the equation of state to show that the…

A: We are suppose to solve only one question, please post other question as a separate question.

Q: A 2.83 kg of air at 21.34 C underwent an isentropic process wherein its initial pressure of 50.53…

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Q: Hint Solution T₁ = 300 K L 00 0.1 2.0 V(m¹) Assuming ideal gas behavior for the air, determine the…

A: Find the overall work and overall heat transfer.

Q: ecify whether the steam is -wet -dry saturated -superheated for the following conditions. Prove your…

A: To determine the state of steam at given conditions.

Q: What is the change in the enthalpy, in kJ/kg, of oxygen as its temperature changes from 150 to…

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Q: Apply the second law to develop the absolute thermodynamic temperature scale.

A: Consider two reversible heat engines HE1 and HE2 are connected in series as shown in the figure.

Q: Determine T2, in oR, and the change in entropy, in Btu/oR.

A: Given: n = 1/4 (quarter lb-mol) P1 = 20 lbf/in2 T1 = 500 oR W = -500 BTU Q = -240 BTU It is required…

Q: At 645.3 kPa and 151.2°C, steam leaves an industrial boiler. When the calorimeter pressure reaches…

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Q: Demonstrate the procedures for determining thermodynamic properties of pure substances from tables…

A: Property tables help us in finding out the thermodynamics properties of substances.  The following…

Q: A 0.2 m3 vessel contains 120 kg of water at 90 ⁰C. Determine pressure, specific and total internal…

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Q: 6.64 mol of an ideal gas at 9.1°C are com- pressed isothermally from an initial volume of 127 cm to…

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Q: 1. Distinguish between enthalpy and entropy and provide the significance of each term to…

A: Enthalpy Entropy Denoted by H (h) Denoted by S (s) Unit - kJ or kJ/kg Unit-kJ/K or kJ/kg K Sum…

Q: vessel contains 10 kg of water at 10 x 1 kPa (if last digit is 2 then 10 x 2 = 20 kPa). Determine…

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Q: Two tanks are placed on table: Tank (1) contains one kg of gas type A at Temperature T (K), while…

A: The heat released and heat absorbed is equal according to the second law of thermodynamics As the…

Q: Determine the change in entropy of an ideal gas with constant heat capacity, CP=3.5R between the…

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Q: If 1 mole of ideal monoatomic gas experiments a reversible process in two stages, first isobar and…

A: P-V diagram

Q: A rigid vessel of volume 0.86 m° contains 1 kg of steam at a pressure of 2 bar. Evaluate the…

A: Answer: (a) Specific volume is 0.86 m3/kg. (b) Temperature is 120.21 ℃. (c) Dryness fraction is…

Q: An ideal gas is compressed adiabatically to 1/32 of its initial volume. If the initial temperature…

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Q: A rigid tank contains 6 kg of an ideal gas at 3 atm and 40°C. Now a valve is opened, and half of…

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Q: 1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv…

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Q: The initial pressure, temperature and volume of a fixed quantity of steam are 5.5 bar, 350°C and 0.1…

A: Given; The initial temperature of the steam, T1 = 350oC The initial pressure of the steam, P1 = 5.5…

Q: Q 1(c): Consider a case in which the air inside the pressurized cabin of a jet transport flying at…

A: given; ⇒pressure (P)=0.9atm                       =0.9*101.25KPa…

Q: 1. Where necessary, assume air as an ideal gas and consider R = 287 J/(kg.K), Cp = 1005 J/(kg.K), Cv…

A: Given data mass flow rate = m˙ = 50 kg/sPressure at entry = Pi = 500 kPaTemperature at entry = Ti =…

Q: an ideal nozzle, the enthalpy change of the gas is 69.4 kJ/kg. Assuming the initial velocity is…

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Q: Determine the temperature change undergone by an air as an ideal gas when expanding in the turbine…

A: High-pressure high-temperature gas enters the turbine and gets expanded there to low pressure. The…

Q: Identify the first law of thermodynamics as simply a statement of the conservation of energy…

A: According to first law of thermodynamics when a closed system is made interaction from the…

Q: Examine the systems given below in terms of the change in entropy as a result of a state change and…

A: The change in entropy of the system is equal to summation of entropy transfer into the system and…

Q: The molar specific heat at constant volume of an ideal gas is equal to 2.5 times the universal gas…

A: Given:molar specific heat at constant volume of an ideal gas= 2.5 times the universal gas…

Q: A vessel of volume 1 m3 initially contains one percent by volume saturated liquid water and the rest…

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Q: Two identical piston cylinder devices A and B both contain 1 kg of saturated water mixture at the…

A: we will be using property tables of steam to calculate values wherever needed. note that both the…

Q: If at a given temperature or pressure the thermodynamic property of water/steam is not listed, then…

A: By interpolation.

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…

Q: is state quantities because they describe quantitatively an equilibrium state of a thermodynamic…

A: State function: State function are those properties of a system whose value depends on the end…

Q: Determine the temperature change undergone by an air as an ideal gas when expanding in the turbine…

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Q: Q1: Select the right choice 1- An isentropic process is always (a) Irreversible and adiabatic (c)…

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Q: eam enters an adiabatic turbine at the rate of 50 kg/sec. If the steam properties at the inlet are…

A: Given:m=50 Kg/sh1=3520 KJ/Kgv1=10 m/sz1=5 mh2=2250 KJ/Kgv2=275 m/sz2=0

Q: Steam at 1.2 MPa  and 500 C undergoes isentropic ( S=C ) expansion process. For mass flow of 2.5…

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Q: 2.95 kg of air at 22.06 C underwent an isentropic process wherein its initial pressure of 51.14 kPa…

A: We ha we have to Determine the change in internal energy (kJ) of the system. Of above question

Q: Q2. Determine the temperature change undergone by an air as an ideal gas when expanding in the…

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Q: Air is to be compressed steadily and isentropically from 1 atm to 18 atm by a two stage compressor.…

A: Intermediate pressure  for minimum work can be calculate by  √(p1p2)  P= √(p1p2) P = √(1 ×18)  P =…

Q: Try to explain the characteristics of thermodynamic energy and enthalpy of ideal gas.

A: Thermodynamics

Q: Specify whether the steam is -wet -dry saturated -superheated for the following conditio Prove your…

A: To determine the state of steam for given conditions.

Q: What are the values of Cp and Cv (in kJ/kg-K), given that for a certain ideal gas, R is 0.277…

A: What are the values of Cp and Cv (in kJ/kg-K),

Q: Q1 (a) Using a sketch as you think appropriate, describe a pure substance in thermodynamics system…

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.