A 14-ft tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure inside rises to 20 psia. During the process 20 Btu of heat is lost to the surroundings. Determine the paddle-wheel work done. Neglect the energy stored in the paddle wheel. The gas constant and molar mass of oxygen are R= 0.3353 psia-ft³/lbm-R and M= 32 lbm/lbmol. The specific heat of oxygen at the average temperature of Tavg = (735+540)/2 = 638 R is Cv,avg=0.160 Btu/lbm-R. The paddle-wheel work done is Btu.

A 14-ft tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure inside rises to 20 psia. During the process 20 Btu of heat is lost to the surroundings. Determine the paddle-wheel work done. Neglect the energy stored in the paddle wheel. The gas constant and molar mass of oxygen are R= 0.3353 psia-ft³/lbm-R and M= 32 lbm/lbmol. The specific heat of oxygen at the average temperature of Tavg = (735+540)/2 = 638 R is Cv,avg=0.160 Btu/lbm-R. The paddle-wheel work done is Btu.

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

Q: An insulated piston-cylinder device contains 200 L of air at 292 kPa and 25 °C. A paddle wheel…

Q: An isolated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of…

A: Given: Work done, W = 400 kJ Pressure, P = 170 kPa Volume, V = 5 L Current,I…

Q: A rigid tank initially contains 4 kg of saturated liquid R-134a at 24C. A valve in the bottom of the…

Q: A 14-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is…

Q: A cylinder fitted with a piston has a volume 0.1 m^3 and contains 0.5 kg of steam at 500 kPa. How…

Q: A 15 liter rigid bottle contains 15 kg of the refrigerant R-134A and it is at a temperature of 20°C.…

A: Given that, Mass of the refrigerant R-134a, m=15 kg,Volume of bottle, V=15 liter,Temperature of…

Q: A 12-ft³ tank contains oxygen at 15 psia and 80°F. A paddle wheel within the tank is rotated until…

A: Given data:Volume of tank (V) =Initial Pressure (P1) =Initial Temperature (T1)=…

Q: Pressure of a gas changes from 20 to 120psia according to the relation P = aV + b, where a = 5.2…

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: The gas is compressed from an initial state of 3 0.35 m and 105 kPa to a final state of 0.14 m 3 and…

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

Q: Steam is contained in a 2-L volume at a pressure of 2.0 MPa and a temperature of 400°C. If the…

A: Givenvolume of the steam v=2ltr=2×10-3 m3pressure, P=2MPatemperature T=400oCheat added Q=20kJ

Q: Argon in the amount of 1.5 kg fills a 0.04-m3 piston-cylinder device at 554 kPa. The piston is now…

A: Given data:- The mass of argon (m) = 1.5 kg The initial volume…

Q: A 12-ft3 tank contains oxygen at 15 psia and 80◦F. A paddle wheel within the tank is rotated until…

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

A 14-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure inside rises to
20 psia. During the process 20 Btu of heat is lost to the surroundings. Determine the paddle-wheel work done. Neglect the energy
stored in the paddle wheel. The gas constant and molar mass of oxygen are R = 0.3353 psia-ft3/lbm-R and M = 32 lbm/lbmol. The
specific heat of oxygen at the average temperature of Tavg = (735+540)/2= 638 R is cv,avg= 0.160 Btu/lbm.R.
The paddle-wheel work done is
Btu.

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

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

Water enclosed in a rigid tank is heated from 120°C to 250°C. The pressure is high enough that the water remains subcooled (compressed) liquid during the process. Determine the thermal energy needed for the process (in kJ) if the mass of water is 8 kg. You can use water property tables or the incompressible substance assumption.
A rigid tank with a volume of 0.1 m 3 contains water at 1.6 MPa and 300 °C. The tank is heated but, in order to maintain the pressure of the tank constant, a valve allows steam to leave the tank at an average temperature and pressure of 400 °C and 1.6 MPa, respectively. Determine the amount of heat transferred by the time the water has reached a temperature of 500 °C.
A rigid vessel contains 5 kg of wet steam at 0.4 MPa. After the addition of 9585 kJ the steamhas a pressure of 2.0 MPa and a temperature of 7080C. Determine the initial internal energy andspecific volume of the steam
Determine the work done by the expanding gas using the trapezoidal rule. from the data in the image
A piston-cylinder device initially contains 1 kg saturated liquid water at 220°C. Now heat is transferred to the water until the volume expands quadruple of its initial volume. Eventually, the cylinder contains saturated vapor only. Determine the volume at the final stage. (i) (ii) Determine the final temperature and pressure. (iii) Determine the internal energy change of the water. (iv) Sketch the T-v diagram and include all the related information.
The air in an automobile tire with a volume of 2.60 ft3 is at 70°F and 22 psig. Determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. Assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. The gas constant of air is Ru 53.34 = 0.3704 The amount of air that must be added to raise the pressure is ft·lbf lbm-R 1 psia 144 lbf/ft² lbm. psia-ft³ lbm-R
A rigid tank contains 17 lbm of air at 20 psia and 75°F. More air is added to the tank until the pressure and temperature rise to 30 psia and 85°F, respectively. Determine the amount of air added to the tank.