Identify whether the given property is a state or path function: Work Heat Volume Pressure Temperature
Q: team at 5 MPa and 400 °C expands polytropically to 1.0 MPa according to pV 1.3=C.Determine the work…
A: Given Data: Initial pressure, P1=5 MPa Initial temperature, T1=400 C Final pressure, P2=1.0 MPa
Q: A closed system undergoes a thermodynamic cycle with three steps: process 1-2 (from state 1 to state…
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Q: ands polytropically through a gas turbine according to the process PV^1.42 = C. If the turbine…
A: Given:PV1.42=CW=27.04 MW
Q: Figure 1 illustrates a composite curve for a set of process stream data. With the aid of a diagram,…
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Q: 2.Find the minimum work done per Kg of air in a cycle according to the following processes: a.…
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Q: Choose correct answer: In a system, mass interaction is equal to zero, energy interaction is equal…
A: In a system, mass interaction is equal to zero, energy interaction is equal to zero, then the system…
Q: The specific volume of nitrogen is 1.9 m3/kg at 200°C. After supplying it with energy in the form of…
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Q: 1. As shown in the figure below, Refrigerant 134a enters a condenser operating at steady state at 70…
A: Given Data: Find : P1 = 70lbf/in2…
Q: The first law of thermodynamics is essentially an expression of the conservation of energy…
A: The general energy balance equation of a system undergoing any thermodynamic process is The energy…
Q: 29. A closed system undergoes a process 1-2 for which W1-2 and Q1-2 are 50 kJ and 20 kJ…
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Q: An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo a reversible non flow…
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Q: Complete the following table for a water-steam system by identifying its state. Insert a dash for…
A: No. Pressure (bar) temperature (oC) Specific volume (m3/kg) Quality Degree of superheat Enthalpy…
Q: Flow work of ideal gas does not change at A)constant pressure B)constant volume…
A: flow work is given as Wflow = d(PV)
Q: Brine enters a cooler at the rate of 50 m3/hr at 15°C and leaves at 1°C. Specific heat and specific…
A: Given Data: Specific gravity, SG=1.1 Specific heat, c=1.07 kJ/kg-K
Q: A closed system undergoes a thermodynamic cycle with three steps: process 1-2 (from state 1 to state…
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Q: It is a type of thermodynamic system which are able to exchange energy (heat and work) and mass…
A: Option b is correct.
Q: Consider a turbine that operates between two states (1, 2) and a compressor that operate between two…
A: Solution: Consider an isentropic expansion in a turbine from state 1-2 and first thermodynamic law,…
Q: A steel ball of mass 1 kg and specific heat 0.4 kJ/kg °C is at a temperature of 60 °C. It is dropped…
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Q: Where can I apply solving matrices in thermodynamics?
A: Apply of matrices in thermodynamics
Q: In a piston subjected to a constant temperature T=125°C, there are 20 grams of water with a quality…
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Q: A closed system undergoes a thermodynamic cycle with three steps: process 1-2 (from state 1 to state…
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Q: Q10: An open system is one in which * 1 (a) heat and work cross the boundary of the system, but the…
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Q: A closed system containing gas expands slowly in a piston cylinder from 321.7 psf and 8.2 ft3 to a…
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Q: 3) From an initial state where the pressure is p1, the temperature is T1, and the volume is V1,…
A: Since process 1-2 is a constant temperature process. initial pressure =p1 final pressure = p2 = 2p1…
Q: what can happen to the universe as entropy increases?
A: Both matter and energy were interchangeable. Gravity was central in the early universe. Although it…
Q: Table 3.1: Gas Constants and Specific Heats for Several Gases at Low Pressures and 300 K Cp…
A: Given that, γ=2.5 ft3T=70 °F,Patm=14.7 psia=2117.8 Pabs=Pgauge+Patm psf=14.4×psi Tank 2 has zero…
Q: Steam enters the condenser of a vapor power plant at 0.60 bar with a quality of 0.90 and condensate…
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Q: A closed system consists of gas of 2 kg initially in state 1 with P1 = 4bar and specific volume v1 =…
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Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…
A: The solution to the above problem is given below
Q: In an open system there must always be which of the following? There may be greater than one answer?…
A: Thermodynamic system is classified as 1. Closed system 2. Open system 3. Isolated system Energy…
Q: The following process occurs in a reversible thermodynamic cycle 1-2 :Reversible polytropic…
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Q: Refrigerant R-134a contained within a piston-cylinder device undergoes isobaric heating processes…
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Q: A steel ball of mass 1 kg and specific heat 0.4 kJ/kg °C is at a temperature of 60 °C. It is dropped…
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Q: There is a piston-cylinder system that undergoes a process. The total work done by the system, W, is…
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Q: kg 9 Air (M= 28.97 kmol) is used for a Stirling cycle engine. Determine the unknown states in the…
A: INTRODUCTION : A Stirling cycle engine is a closed-cycle regenerative heat engine that converts heat…
Q: Air undergoes a three-process cycle. For 2 kg of air if the processes are: 1 → 2: constant…
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Q: The irreversibility associated with a student studying and watching a movie on television, each for…
A: The irreversibility associated with a student studying and watching a movie on television, each for…
Q: A rigid container of volume 0.5 m³ contains 1.0 kg of water at 120°C (Vf = 0.00106 m³/kg, vg =…
A: Given data: ◆ The volume of rigid container: v = 0.5 m3 ◆ The mass of water in container: m = 1.0 kg…
Q: Four pounds of air gain 0.491 BTU/R of entropy during a nonflow isothermal process. If P1=120 psia…
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Q: done per Kg of air in a cycle according to the following process: a. isothermal expansion from state…
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Q: In the concept/parameter of thermodynamics, what refers to the total energy content of a system?
A: Total energy content of a system or total energy of system is nothing but the sum of energies which…
Q: . The zeroth law of thermodynamics discusses Thermal equilibrium . Energy conservation . Direction…
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Q: A rigid tank whose volume is 4 mở, initially containing air at 1 bar, 295 K, is connected by a valve…
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Q: Steam enters the condenser of a vapor power plant at 0.60 bar with a quality of 0.90 and condensate…
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Q: 2 kg of air undergoes a power cycle undergoes a power cycle consisting of the following processes:…
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Q: A closed system undergoes a thermodynamic cycle with three steps: process 1-2 (from state 1 to state…
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Q: A gas within a piston-cylinder assembly undergoes a three processes: Process 1-2: Constant volume, V…
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Q: or a closed system undergoing a thermodynamic cycle, what statement from the list below is correct…
A: For a cycle (cyclic process) change in any property is zero.
Q: A fluid is contained in a cylinder by a spring-loaded, frictionless piston so that the pressure in…
A: Given: p=a+bVU=34+3.15 pVP1=173 kPaV1=0.03 m3P2=400 kPaV2=0.06 m3
Identify whether the given property is a state or path function:
- Work
- Heat
- Volume
- Pressure
- Temperature
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- find thermodynamic system borders and surroundingsWhat are three forms of energy interactions though boundaries of a system? A. Internal energy B. Heat C. Work D. Mass flowIf a system is at steady state, does this mean intensive properties are uniform with position throughout the system or constant with time? Both uniform with position and constant with time? Explain.
- The Figure shows a solar collector panel embedded in a roof. The panel, which has a surface area of 24 ft2, receives energy from the sun at a rate of 200 Btu/h per ft2 of collector surface. Twenty-five percent of the incoming energy is lost to the surroundings. The remaining energy is used to heat domestic hot water from 90 to 120°F. The water passes through the solar collector with a negligible pressure drop. Neglecting kinetic and potential effects, determine at steady state how many gallons of water at 120°F the collector generates per hour.Explain the following terms in relation to a system - Boundry, surroundings, equilibrium, phase, pure substance, entropy.While the temperature remains constant at 38 degrees C, 2.5 kg of a certain ideal gas whose Cp = 1.1724 kJ/kg-K, Cv = 0.8375 kJ/kg-K rejects 300kJ of heat. If the initial pressure 596kPa, find: (a) the final pressure in kPa 1,887 1,792 1,682 (b) the initial volume in cubic meter 0.46 0.48 0.44 (c) the final volume in cubic meter 0.145 0.155 0.138
- "A thermodynamic process from state A to state B is a vertical line path in the PV diagram. This process is ___________, and the work done by the system is __________." a. isochoric; positive b.isochoric; zero c. isobaric; zero d. isobaric; positiveShow by calculation that heat is not a state function. Use the first law of thermodynamics and internal energy as a function of temperature and volume....10. A steam drum contains steam having an 86% quality. Assuming that the density of Liquid part is 989kg/m³ and that of the vapor part is 1.23kg/m³, Estimate the specific volume of the steam. (Note: 86% quality indicates the mass in vapor state) Derive with the formula below, show the cancellation, explain the step by step and DRAW a free body diagram/figure. refer with this: PE1 + KE1 + U1 + WF1 + Q1 + W1 = PE2 + KE2 + U2 + WF2 + Q2 + W2 + E losses.
- 1.1 Determine the electrical power supplied to a boiler when the temperature of the entering water is 20 C and the exiting temperature is 89 C. The flow of.the pressured water is 2 Kg/s. There is a negligible pressure drop through this boiler and it operates at a constant pressure of 3 bars. The specific heat is c = 4,370 J/(Kg K). There is a 1.5(105 ) W rate of heat loss from the boiler during this process to a surrounding at 293.2 k. Consider steady state conditions. 1.2 Calculate the total rate of entropy production in Problem 1.1. 1.3 Calculate the total rate of exergy destruction (W) in Problem 1.1. The dead state temperature is 293.2 K and pressure is 1 bar. 1.4 Calculate the mass flowrate of fuel (natural gas, CH4) required to heat the water flow to the conditions of problem 1.1 if the electrical heating device is replaced with a gas fired boiler. The high heating value (HHV) of the fuel is 50.02 MJ/kg 1.6 The utility providing the electricity to the boiler in problem 1.1 uses…Air is contained within a piston-cylinder assembly The cross sectional area of the piston is 0.01 m². Initially the piston is at 1 bar and 25°C, 10 cm above the base of the cylinder. In this state, the spring exerts no force on the piston. The system is then reversibly heated to 100°C. As the spring is compressed, it exerts a force on the piston according to: F=-kx where k= 50,000 N/m and x is the displacement length from its uncompressed position. Determine the work done.Air is contained in a piston/cylinder device at an initial state where the volume is 1.7 m3, temperature is 250 K, and pressure is 454 kPa. In a portion of an engine cycle, air goes through the following two sequential processes: Process 1-2: It is heated while the system is allowed to expand at constant pressure, until the volume increases by 55%. Process 2-3: It is heated further to maintain a constant temperature while the volume increases by 55% again. To simplify this problem, you can treat air as an ideal gas with constant specific heats. a.) On your paper, draw these processes on a P-V diagram. Label states 1, 2, and 3. b.) During these two combined processes, how much heat is transferred to the air, in kJ?