Question

A pipe contains helium at a gage pressure of 140 kPa and a temperature of 20∘C....

A pipe contains helium at a gage pressure of 140 kPa and a temperature of 20∘C. The atmospheric pressure is 101.3 kPa. R = 2077 J/[kg⋅K] and k = 1.66.

Part A

Determine the density of the helium.

p1=

Part B

Determine the temperature if the helium is compressed isentropically to a gage pressure of 250 kPa .

T2=

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Air at a pressure of 101 kPa and a temperature of 20°C has its temperature raised...
Air at a pressure of 101 kPa and a temperature of 20°C has its temperature raised to 4000 K in a constant-pressure process. Determine the composition of the air at this elevated temperature. Assume the air to initially consist of 3.76 mol N / mol O
A gas fills a 140 cc cylindrical piston of height 20 cm at room temperature (22⁰C)...
A gas fills a 140 cc cylindrical piston of height 20 cm at room temperature (22⁰C) and atmospheric pressure (101 kPa). a) How many atoms are there in the gas? 3.42538e21 atoms (answer) b)How much kinetic energy is there in the gas? ? J (I cant figure this out)
A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at...
A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. The temperature of the gas inside the cylinder is then lowered by 85 K. Calculate q for this system in response to the change made. Include units of J when entering your answer. Heat capacity for Helium = 20.8 J/(mol K) Molecular weight for Helium = 4 g/mol I tried doing the q=Cp*m*dT and got 110500 J but it was incorrect.
An insulated piston–cylinder device initially contains 20 L of air at 140 kPa and 27 °C....
An insulated piston–cylinder device initially contains 20 L of air at 140 kPa and 27 °C. Air is now heated for 10 min by a 100-W resistance heater placed inside the cylinder. The pressure of air is maintained constant during this process, and the surroundings are at 27 °C and 100 kPa. Determine the exergy destroyed during this process.
A 1-m3 tank contains 1.042 kg of water vapor at pressure 200 kPa. Determine the temperature...
A 1-m3 tank contains 1.042 kg of water vapor at pressure 200 kPa. Determine the temperature in degrees celsius (˚C) using the van der Waals equation.
A cube 22 cm on each side contains 3.3 g of helium at 20∘C. 1000 J...
A cube 22 cm on each side contains 3.3 g of helium at 20∘C. 1000 J of heat energy are transferred to this gas. Part A: What is the final pressure if the process is at constant volume? Part B: What is the final volume if the process is at constant pressure?
A cube 22 cm on each side contains 3.4 g of helium at 20∘C. 1200 J...
A cube 22 cm on each side contains 3.4 g of helium at 20∘C. 1200 J of heat energy are transferred to this gas. Part A What is the final pressure if the process is at constant volume? p = Part B What is the final volume if the process is at constant pressure? V =
A cube 17 cm on each side contains 2.2 g of helium at 20∘C. 1100 J...
A cube 17 cm on each side contains 2.2 g of helium at 20∘C. 1100 J of heat energy are transferred to this gas. Part A What is the final pressure if the process is at constant volume? Express your answer to two significant figures and include the appropriate units. Part B What is the final volume if the process is at constant pressure? Express your answer to two significant figures and include the appropriate units.
An adiabatic air compressor compresses 10.6 L/s of air at 120 kPa and 20°C to 1000...
An adiabatic air compressor compresses 10.6 L/s of air at 120 kPa and 20°C to 1000 kPa and 300°C. The constant pressure specific heat of air at the average temperature of 160°C = 433 K is cP = 1.018 kJ/kg·K. The gas constant of air is R = 0.287 kPa·m3/kg·K. Determine the work required by the compressor
0.75 kg of refrigerant-134a at 120 kPa and 20°C initially fills a piston-cylinder device. Heat is...
0.75 kg of refrigerant-134a at 120 kPa and 20°C initially fills a piston-cylinder device. Heat is now transferred to the refrigerant from a source at 150°C, and the piston which is resting on a set of stops, starts moving when the pressure inside reaches 140 kPa. Heat transfer continues until the temperature reaches 90°C. Assuming the surrounding to be at 25°C and 100 kPa, determine (a) the work done, (b) the heat transfer, (c) the exergy destroyed, and (d) the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT