1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oee [108]
3 years ago
14

A rigid tank with a volume of 4 m^3 contains argon at 500 kPa and 30 deg C. It is connected to a piston cylinder (initially empt

y) with a line and a closed valve. The pressure in the cylinder should be 300 kPa to float the piston. Now the valvle is slowly opened and heat is transferred so the argon reaches a final state of 30 deg C with the valve open. The heat transfer takes place from a 60 deg C space through a conduction layer 1 cm thick with a conductivity k = 0.1 W/mK and a surface area of 1.5 m^2.
a. Find the final volume of the argon and the total work for the process.

b. Find the total heat transfer needed.

c. How long will the process take?

Engineering
1 answer:
vesna_86 [32]3 years ago
3 0

Answer:

a) Final Volume: 6.667 m³, Total Work = 1.02175 MJ

b) Heat Transfer = 1.02175 MJ

c) Time: t = 37 min, 50.5 seconds (37.84 minutes OR 0.63 hours)

Explanation:

You might be interested in
Rough Riders Inc. manufactures jeans in the cutting and sewing process. Jeans are manufactured in 50-jean batch sizes. The cutti
miskamm [114]

Answer: me and ten points now

Explanation:

3 0
3 years ago
According to the Bureau of Labor Statistics, which occupation employed 4.2 million people – more than any other occupation – in
Ludmilka [50]

Answer:

Retail Salespersons

Explanation:

The Bureau of Labor Statistics or the BLS in short is the federal unit or agency of the United States Labor Department. It is the main stats finding agency of the United States federal government in the field of statistics and labor economics.

According to a publication published by the Labor Statistics Bureau, the retail salesperson sector of occupation employed the most people in the U.S. in the year 2010. It provided employment to about 4.2 million people.

5 0
3 years ago
Is an isothermal process necessarily internally reversible? Explain your answer with an example
torisob [31]

Answer:

please give me brainlist and follow

Explanation:

Example of an irreverseble isothermal process is mixing of two fluids on the same temperature - it requires a lot of energy to unmix Jack and coke. ... Example of an reversible process with changing temperature is isentropic expansion.

5 0
2 years ago
An aluminum oxide component must not fail when a tensile stress of 12.5 MPa is applied. Determine the maximum allowable surface
aivan3 [116]

Answer:

1.44 mm

Explanation:

Compute the maximum allowable surface crack length using

C=\frac {2E\gamma}{\pi \sigma_c^{2}} where E is the modulus  of elasticity, \gamma is surface energy and \sigma_c is tensile stress

Substituting the given values

C=\frac {2\times 393\times 10^{9}\times 0.9}{\pi\times (16\times 10^{6})^{2}= 0.001441103 m\approx 1.44mm

The maximum allowable surface crack is 1.44 mm

4 0
3 years ago
What is the difference between science and engineering?
jek_recluse [69]

Answer:

The following table is among some of the discrepancies between some of the different topics.

Explanation:

  • Science seems to be the application of structured organized facts which could be interpreted scientifically because when engineering would be a branch of science which deals with either the profession of acquiring including using technological, computational, economical and severity of adverse effects to design and manufacture equipment and devices that seem to be beneficial to mankind.
  • Science would be a set of information and established frameworks whereas the use of these models and information to construct structures as well as mechanisms becomes engineering.
4 0
3 years ago
Other questions:
  • The spring has a stiffness k=200 N/m and is unstretched when the 25 kg block is at A. Determine the acceleration of the block wh
    6·1 answer
  • With increases in magnification, which of the following occur? a. The field of view decreases. b. The ambient illumination decre
    9·1 answer
  • How many grams of water at 5.00 °C would we need to mix with 140.0 g of water at 85.0 °C to obtain a final temperature of 43.0 °
    6·1 answer
  • HW6P2 (20 points) The recorded daily temperature (°F) in New York City and in Denver, Colorado during the month of January 2014
    10·1 answer
  • Why is flexibility the most obvious benefit of road transportation select all that apply
    10·1 answer
  • With a reservoir pressure of 1.0 MPa and temperature of 750 K, air enters a converging-diverging nozzle, in a steady fashion. Fl
    5·1 answer
  • Please answwr the above question screenshot.​
    15·1 answer
  • Please help me:<br> Use the Node analysis to find the power of all resistors
    9·1 answer
  • How can you contribute to achieved the mission of NSTP during pandemic in your society?
    7·1 answer
  • What is the correct procedure for mounting the m240 on the m122a1 tripod after the pintle is attached to the receiver?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!