Consider 0.5 kg of Refrigerant -134a contained in a piston-cylinder assembly with initial temperature of 80°C and pressure 7 bar. An adiabatic expansion brings the system to 48°C and 2 bar. A subsequent isobaric compression reduces the volume of the system to half of its initial volume. a) Create a p-v diagram (with dome shape included) and indicate the location of different states and processes. The diagram does not need to be on scale.

Consider 0.5 kg of Refrigerant -134a contained in a piston-cylinder assembly with initial temperature of 80°C and pressure 7 bar. An adiabatic expansion brings the system to 48°C and 2 bar. A subsequent isobaric compression reduces the volume of the system to half of its initial volume. a) Create a p-v diagram (with dome shape included) and indicate the location of different states and processes. The diagram does not need to be on scale.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: One mole of gas undergoes the cycle shown in the p-V diagram below. Po Po/32 Vo 2Vo 8 Vo Volume 16…

A: GIVEN DATA - A THERMODYNAMIC CYCLE GIVEN WE HAVE TO ANSWER ALL THREE POINT

Q: 4 kmol of oxygen (O₂) gas undergoes a process in a closed system from p₁ = 50 bar, T₁ = 170 K to P2…

Q: A spring-loaded piston-cylinder device contains of m=1 kg carbon dioxide. Initially, the spring has…

A: P1=500 kPaV1=0.1 m3T1=150 KV2=0.3 m3T2=900 K

Q: 2.35 Consider the five processes a-b, b-c, c-d, d-a, and a-c as sketched on the P-v coordinates.…

A: Solution: P-T diagram Constant Pressure process a-bV1V2=TaTbTb=V2V1×TaSince V2>V1Tb>Ta…

Q: 4 kmol of oxygen (0₂) gas undergoes a process in a closed system from p₁ = 50 bar, T₁ = 170 K to P2…

Q: P2.2 A fixed quantity of steam of mass 0.013 kg is heated at a constant pressure of 3 bar. The…

Q: Please give me the solution in handwritten format, include correct sign and explanation. Strictly…

Q: 3.134 One kilogram of air in a piston-cy linder assembly undergoes two processes in series from an…

Q: 5 ft3 of air is stored in a piston-cylinder device at 53 psia. It is compressed to a final pressure…

Q: Oxygen (O2) is contained within a horizontal piston-cylinder system initially at 500 kPa, 200°C, and…

Q: P2. A piston-cylinder device that initially has a volume of 0.03 m3 contains inside it saturated…

Q: The figure shows a pV diagram for 1.8 g of helium gas (He) that undergoes the process from the state…

Q: As shown in the figure below, a cylinder fitted with a piston is filled with 600 lb of saturated…

A: Given Weight, W = 1 ton = 2000 lbf Diameter, d = 2.5 ft = 30 in Mass, m = 600 lb Find Volume, V…

Q: An insulated, rigid tank is divided into two equal parts by a membrane. (Figure 1) At the beginning,…

Q: A gas can be modeled as an ideal gas with constant specific heats when Z= 請 SS

A: It is required to determine value of Z for ideal gas

Q: A kilogram of Argon gas( MW= 40 kg/kmol, k=5/3) is in a piston cylinder set-up. Initially, it has…

Q: 2) Water in a pressure cooker is observed to boil at 175°C. What is the absolute pressure in the…

Q: An ideal gas having a gas constant of 0.4 kJ/(kg K) has a pressure of 2 bar and a temperature of 400…

Q: Air undergoes an isochoric process from T1 = 300°C to T2 = 250°C as an ideal gas in a closed system.…

A: Given data: The process is isochoric, so V1=V2 The initial temperature is T1=300°C=573 K The final…

Q: Water is heated in a closed container with rigid walls that is a perfect cube (1 m x 1mx n). The…

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Consider 0.5 kg of Refrigerant -134a contained in a piston-cylinder assembly with initial temperature of
80°C and pressure 7 bar. An adiabatic expansion brings the system to 48°C and 2 bar. A subsequent
isobaric compression reduces the volume of the system to half of its initial volume.
a) Create a p-v diagram (with dome shape included) and indicate the location of different states and
processes. The diagram does not need to be on scale.
b) Calculate the work involved in adiabatic expansion.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

You press as hard as you can on the plunger of a closed syringe and measure the volume when the syringe is in ice water, air and hot water. Of the three variables, P, V, T, which are the same for all three cases and which are different.b. For the variables that change, explain their dependence using the ideal gas law.
A spring-loaded piston-cylinder device contains m= 1kg of carbon dioxide. Initially, the spring has no force on the piston and P₁ = 500kPa, T₁=150K, V₁ = 0.1m³. 1 Heat is transferred to the gas, causing the piston to rise and to compress the spring. At the state 2, T₂=900K, V₂=0.3m³. The gas is an ideal gas. 2 (1)How to determine the pressure P at the state 2? 2 O A. O B. OC. O D. P1, V1, T1 P. = 2 V T V T 1 V T 2 V T 1 V V 1 2 V 2 T 1 2 T T 1 2 1 P₁ P₁ P₁ P₁ P2, V2, T2
3-4. In each case, determine the requested property values and show the states on carefully-labeled p-v and T-v diagrams: (a) For H20 at p = 60 lbf/in.?, T= 358°F, determine v in ft/lb and u in Btu/lb. (b) For Propane at T = 50°C, v = 0.02861 m/kg, determine p, in bar. (c) For Ammonia at T= – 10 °C, v = 0.7 m/kg, determine p in bar and u in kJ/kg. (d) For H20 at p = 30 lbf/in.², x = 0.7 (70%), determine T in °F, v in ft/lb, and u in Btu/lb.
A piston-cylinder device contains an ideal gas of nitrogen. At the initial state, the volume is V₁ = 1.00 m³, the pressure is p₁= 400.00 kPa, the temperature is T₁=300.00 K. An electric heater within the device is turned on for a time of At = 5.00 min. The current is I = 3.00 A, and the source voltage is V = 120.00 V. During the heating process, the gas expands, and a heat loss of Qout = 2.80 kJ occurs. The gas constant is R = 0.297 kPa m³/(kg-K), and the room temperature specific heat at constant pressure is cp =1.039 kJ/(kg-K). Calculate the final state temperature, T2. (K) Gas
c. What is the internal energy, u, in kJ/kg of refrigerant R22 at temperature T=-10°C. and specific volume v=0.055 m³/kg? Draw a p-v and T-o diagram and locate the state. What is the phase of the state?
A piston-cylinder device contains an ideal gas of nitrogen. At the initial state, the volume is V1= 1.00 m3, the pressure is p1= 400.00 kPa, the temperature is T1= 300.00 K. An electric heater within the device is turned on for a time of Δt = 5.00 min. The current is I = 3.00 A, and the source voltage is V = 120.00 V. During the heating process, the gas expands, and a heat loss of Qout = 2.80 kJ occurs. The gas constant is R = 0.297 kPa·m3/(kg·K), and the room temperature specific heat at constant pressure is cp =1.039 kJ/(kg·K). Calculate the mass of the gas, m__________ (kg)
3
A piston-cylinder device contains an ideal gas of nitrogen. At the initial state, the volume is V1= 1.00 m3, the pressure is p1= 400.00 kPa, the temperature is T1= 300.00 K. An electric heater within the device is turned on for a time of Δt = 5.00 min. The current is I = 3.00 A, and the source voltage is V = 120.00 V. During the heating process, the gas expands, and a heat loss of Qout = 2.80 kJ occurs. The gas constant is R = 0.297 kPa·m3/(kg·K), and the room temperature specific heat at constant pressure is cp =1.039 kJ/(kg·K). Calculate the electrical work done on the gas, Wele__________ (kJ)
Q. - one kg of um ideal gas (R = 287 K irreversible process from Stelte - 0 [1 bar, 300 k] to State - [2 bar, 300k] The entropy change (S2-S1) J kgk