Problem 3: A piston-cylinder device initially contains 1.2 kg of air at 700 kPa and 200 °C. At this state, the piston is touching on a pair of stops. The mass of the piston is such that 600-kPa pressure is required to move it. A valve at the bottom of the tank is opened, and air is withdrawn from the cylinder. The valve is closed when the volume of the cylinder decreases to 80 percent of the initial volume. If it is estimated that 40 kJ of heat is lost from the cylinder, determine (a) the final temperature of the air in the cylinder, (b) the amount of mass that has escaped from the cylinder, and (c) the work done. Use constant specific heats at the average temperature. Air 1.2 kg 700 kPa 200°C O

Problem 3: A piston-cylinder device initially contains 1.2 kg of air at 700 kPa and 200 °C. At this state, the piston is touching on a pair of stops. The mass of the piston is such that 600-kPa pressure is required to move it. A valve at the bottom of the tank is opened, and air is withdrawn from the cylinder. The valve is closed when the volume of the cylinder decreases to 80 percent of the initial volume. If it is estimated that 40 kJ of heat is lost from the cylinder, determine (a) the final temperature of the air in the cylinder, (b) the amount of mass that has escaped from the cylinder, and (c) the work done. Use constant specific heats at the average temperature. Air 1.2 kg 700 kPa 200°C O

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: Use the Ideal Gas Law to show how pressure and temperature are related in the case of two footballs…

Q: Ammonia with MW=17, weighing 22kg is confirmed inside a cylinder equipped with a piston has initial…

Q: arrangement contains 0.24-kg nitrogen and receives 11.806 kJ of heat isothermally. The initial…

A: Handwriting.jpg

Q: piston-cylinder arrangemen

A: SOLUTION GIVEN BELOW.

Q: The piston in a car engine compresses a mixture of gasoline vapour and air from 700ml to 100ml…

A: Given:Volume of fuel and air mixture at the beginning of compression, V1=700 ml=0.7 L=0.7*10-3…

Q: A constant volume container initially contains 13 kg of air at a temperature of 20 °C and a pressure…

A: ideal gas An ideal gas is a theoretical gas composed of many randomly moving point particles that…

Q: A tank with a volume of 2 m³ is filled with air at 29°C and 350 kPa is connected through a valve to…

A: To determine the volume of second tank and final equilibrium pressure

Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: Answer: The required voltage for the electric resistive heater is 22.3611 Volts.

Q: A piston/cylinder assembly with a spring contains 0.075 kg of water. The piston is initially resting…

Q: 3 kg of wet vapor, having a quality of 33% expands at a constant pressure of 5.6 MPa inside a…

A: Mass of wet vapor, m=3 kg Dryness fraction, x=0.33 Pressure, P=5.6 MPa Quality of steam defines the…

Q: A 3000 cm' tank initially contains compressed air at 600 kPag and 28 °C. Determine the mass of air…

Q: A piston-cylinder arrangement contains 0.11-kg nitrogen and receives 10.14 kJ of heat isothermally.…

A: Given: m = 0.11 kg Q = 10.14 kJ P1 = 443.3 kPa T1 = T2 = 124.6 deg C P2 = ? Answer: P2 = 203.05 kPa

Q: A frictionless piston-cylinder device initially contains 200L of saturated liquid refrigerant-134a.…

A: 1. Given, V1=200LP1=P2=900KPaT2=70°CFrom the steam table Properties of refrigerant R-134a at…

Q: A frictionless piston-cylinder device contains 3 L of saturated liquid water at a temperature of…

A: Given:V1=3 L=0.003 m3T1=110°C saturated liquidt=22 min i=7.5 AV=160 V

Q: A MOTORIST EQUIPS HIS AUTOMOBILE TIRES WITH A RELIEF-TYPE VALVE SO THAT THE PRESSURE INSIDE THE TIRE…

Q: The A and B tanks given in the figure are separated from each other by the closed valve between…

A: In tank A: Volume of water vapour, V1=0.2m3 Temperature of water vapour, T1=150oC Pressure of water…

Q: A piston/cylinder setup contains 1 kg of air at 20°C with an initial volume of V1=0.1 m3. Initially,…

A: For solution refer below images.

Q: A 2-m3 tank initially contains a mixture of saturated-vapor steam and saturated-liquid water at 2000…

Q: Two kg of water at 105°C and a quality of 50% (i.e. x = 0.5) is first heated until the piston locks…

A: Given; m = 2kgT1=105°Cx1=0.5T3=90°Cx3=1

Q: The thermodynamic process of a substance when it passes through device changes in a constant…

Q: A 26.5 ft - capacity vessel contains air at a temperature of 62.6°F and a pressure of 3 bar. The…

Q: A rigid container contains m = 3 kg of air. The air changes from an initial state of P1 = 0.5 MPa…

Q: In this example, water is contained in a rigid container with a tight fitting lid. With a pressure…

Q: The gage pressure of an ideal gas changes from 100 kPa to 200 kPa while maintaining a constant…

A: GIVEN DATA INTIAL GAUGE PRESSURE = 100KPa INTIAL VOLUME = 100L FINAL GAUGE PRESSURE =200KPa WE HAVE…

Q: A constant volume container holds 10 kg of air at a temperature of 20°C and a pressure of 150 kPa.…

A: Given Data

Q: The system contains carbon dioxide at 300 kPa, with volume of 0.2 m³ and is at 100°C. The mass has…

A: Given:-Initial pressure, P1=300 kPaInitial volume, V1=0.2 m3Initial temperature, T1=100°C=373KFinal…

Q: Refrigerant 134a expands in a piston-cylinder assembly from p₁ = 140 lb/in² and T₁ = 140°F to p₂ =…

Q: Thermodynamic problem. Determine the work necessary to compress a gas from an initial volume VI=90L…

Q: Air is contained in a piston-cylinder arrangement with an initial volume of 0.02 m³ and at an…

Q: A piston-cylinder device which contains air has an initial state of 150 kPa and 0.25 cubic meter. In…

A: Given data:

Q: A piston/cylinder assembly with a spring contains 0.1 kg of water. The pistor is initially resting…

Q: A certain oxygen cylinder has a capacity of 250 litres and contains oxygen at a pressure of 3 MPa…

A: Given that, V1=V2=250 litres=2501000=0.25 m3 , p1=3 MPa,T1=20°C=293 K, p2=1.8 MPa, T2=16°C=289 K,…

Q: Q3/A piston-cylinder contains air at 150Kpa and 400 C after cool air to temperature of 20 C.…

Q: A piston - cylinder device contains 1 kg air at a pressure P = 125 kPa and T= 500K. Now, the gas is…

A: Given data: m=1 kgP1=125 kPaT1=500 KT2=600 K Need to determine the heat delivered to the system.

Concept explainers

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.

Question

Problem 3: A piston-cylinder device initially contains 1.2 kg of air at 700
kPa and 200 °C. At this state, the piston is touching on a pair of stops. The
mass of the piston is such that 600-kPa pressure is required to move it. A valve
at the bottom of the tank is opened, and air is withdrawn from the cylinder.
The valve is closed when the volume of the cylinder decreases to 80 percent
of the initial volume. If it is estimated that 40 kJ of heat is lost from the
cylinder, determine (a) the final temperature of the air in the cylinder, (b) the
amount of mass that has escaped from the cylinder, and (c) the work done.
Use constant specific heats at the average temperature.
Air
1.2 kg
700 kPa
200°C
Q

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

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 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

What is the new temperature (in K) of a closed gas system when it's volume is compressed from 5.6 L to 2.3 L and initial temperature was 455ﾟ K
ReadSpeaker webReader: Listen In a reservoir, the pressure of a compressed gas must not be increased past 825 kPa. The gauge indicated 388 kPa when the temperature is 24oC. Determine the maximum temperature which can safely be attained in the reservoir
Determine the internal energy of saturated liquid water at 225 kPa.
A frictionless piston-cylinder device initially contains 80 L of liquid saturated with refrigerant 134a. The piston has free movement, and its mass is such that it maintains a pressure of 500 kPa on the refrigerant. The refrigerant is then heated until its temperature rises to 70 ° C. Calculate the work done during this process.
A cylinder-piston device provided with stops, so that the water supports the weight of the piston, and the force of the atmosphere,It contains water, initially at 300 kPa and 0.5 m3 / kg. The water is heated to a saturated steam condition and the plunger rests on the stops. With the plunger on the stops, the water is heated up to the pressure of 600 kPa. In the P-V and T-V diagrams, with respect to the saturation lines, the process curves go through the initial and final states of the water. On both T-V and P-V diagrams draw the isotherms that pass through both states, and show their values in ° C, in the isotherms. (see img 1)
Determine the specific volume, internal energy and enthalpy of compressed liquid at 120 °C and 15MPa.
Air is compressed into a 0.5 ft3 rigid tank until the initial pressure is 650 psia when the temperature raises from 70 0F. If the air is allowed to cool to 30 0F, what will be the final pressure of the air
The compression factor for low molecular-weight, real gases at very low pressure is,
In a reservoir, the pressure of a compressed gas must not be increased past 825 kPa. The gauge indicated 388 kPa when the temperature is 24oC. Determine the maximum temperature which can safely be attained in the reservoir
Nitrogen is isobarically expanded from 100 kPa and 600 K until the volume doubles in a closed piston-cylinder. Assume that specific heats are constant and evaluated at the average temperature. Hint: Nitrogen is an ideal gas.Determine the amount of heat transfer into the system, in kJ/kg? Calculate the change of enthalpy, in kJ/kg?Calculate the change of internal energy, in kJ/kg? Report your answer to the nearest whole number using rounding.