Question

A stream of air at 12 bar and 900 K is mixed with another stream of...

A stream of air at 12 bar and 900 K is mixed with another stream of air at 2 bar and 400 K with 2.5 times the mass flow rate. If this process were accomplished reversibly and adiabatically, what would be the temperature and pressure of the resulting air stream? Assume air to be an ideal gas for which CP = (7/2)R.

Engineering   Chemical-Engineering   
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
A gas stream at 310 K and 14 bar is to be compressed to 345 bar...
A gas stream at 310 K and 14 bar is to be compressed to 345 bar before transmission by underground pipeline. If the compression is carried out adiabatically and reversibly, determine the compressor outlet temperature and the work of compression for the gas stream, which consists of (a) pure methane, (b) 95 mol % methane and 5 mol % ethane, (c) 5 mol % methane and 95 mol % ethane
Two streams of air are mixed in a steady-state process. Assume air is an ideal gas...
Two streams of air are mixed in a steady-state process. Assume air is an ideal gas with a constant heat capacity Cp=7R/2. Stream A: 0.167 mol/s, 250K, 1 bar Stream B: 0.833 mol/s, 310K, 1 bar Stream C: 1 bar (A and B going to the right into tank, and C going to the right out of the tank) a) What is the temperature of the stream leaving the tank if the process is adiabatic? b) What is the rate...
Consider an air-cooled condenser in which a stream of R-134a enters at 12 bar and 60degC,...
Consider an air-cooled condenser in which a stream of R-134a enters at 12 bar and 60degC, and leaves as a saturated liquid at 12 bar, and air enters as a separate stream at 1 bar, 35degC and leaves at 1 bar, 45degC. The two streams do not mix but heat transfer from one stream to the other stream occurs at the rate of 6.94 kW. Determine (a) the mass flow rates for the R-134a and the air (kg/s), and (b)...
Air at 1 bar, 295 K, and a mass flow rate of 0.7 kg/s enters a...
Air at 1 bar, 295 K, and a mass flow rate of 0.7 kg/s enters a compressor operating at steady state and exits at 3 bar. During the compressing from inlet to exit, the air experiences a polytropic process as PV^n=constant. m=6, n=1.48. (1) Determine the power required by the compressor. (2) Determine the heat transfer between the compressor and the surrounding. (s) Determine the rate of exergy destruction. Kinetic and potential energy effects are negligible. Let T_0 = 300...
Air at 1 bar, 295 K, and a mass flow rate of 0.7 kg/s enters a...
Air at 1 bar, 295 K, and a mass flow rate of 0.7 kg/s enters a compressor operating at steady state and exits at 3 bar. During the compressing from inlet to exit, the air experiences a polytropic process as PV^n=constant. m=6, n=1.48 (1) Determine the power required by the compressor. (2) Determine the heat transfer between the compressor and the surrounding. (s) Determine the rate of exergy destruction. Kinetic and potential energy effects are negligible. Let T_0 = 300...
3. 10.0 moles of ideal gas cloud has an initial pressure of 1.00 bar, initial volume...
3. 10.0 moles of ideal gas cloud has an initial pressure of 1.00 bar, initial volume of 100.0L and temperature of 25.0ºC. The cloud expands adiabatically to a final volume of 1000.0L. Cp,m= 20.79 J / mol K (Cp,m is molar heat capacity and constant pressure) a. (10 pts) What is the final pressure of the gas cloud? b. (10 pts) What is the final temperature of the gas cloud? c. (10 pts) What is the change in entropy for...
An air compressor, operated at steady state, compresses air from 1 bar 25oC to 10 bar....
An air compressor, operated at steady state, compresses air from 1 bar 25oC to 10 bar. At the outlet of the compressor, the air temperature is 80oC. The compressor transfers heat to the surroundings at 300kJ for each kg of air passing through the compressor. The average temperature at which the heat is transferred is 50oC. Which of the following values is closest to the specific entropy production of the compressor process? For air, Cp=1.01 kJ/kgK and R=0.286kJ/kgK. Hints: Air...
A) 1 kg of air with a pressure of 13 bar and a temperature of 125...
A) 1 kg of air with a pressure of 13 bar and a temperature of 125 ° C is heated as isobar up to 550 ° C. a) Work done during heating, b) Internal energy and enthalpy change, c) Calculate the amount of heat consumed. (R = 287 j / kgK, x = 1,4) B) An ideal gas with a pressure of 1 bar and a volume of 0.5m³ is compressed isothermally up to 17 bar pressure. Calculate the volume...
A rigid copper tank, initially containing 1 m3 of air at 295 K, 4 bar, is...
A rigid copper tank, initially containing 1 m3 of air at 295 K, 4 bar, is connected by a valve to a large supply line carrying air at 295 K, 15 bar. The valve is opened only as long as required to fill the tank with air to a pressure of 15 bar. Finally, the air in the tank is at 310 K. The copper tank, which has a mass of 20 kg, is at the same temperature as the...
An insulated cylinder is filled with nitrogen gas at 25ºC and 1.00 bar. The nitrogen is...
An insulated cylinder is filled with nitrogen gas at 25ºC and 1.00 bar. The nitrogen is then compressed adiabatically with a constant pressure of 5.00 bar until equilibrium is reached. i. What is the final temperature of the nitrogen if it is treated as an ideal gas with molar heat capacity CP = 7/2 R ? ii. Calculate ΔH (in kJ mol-1 ) and ΔS (in J mol-1 K-1 ) for the compression. (Hint: Because the enthalpy is a state...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT