![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 03:30, zahradawkins2007
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:30, mlopezmanny5722
The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f. s. = 2 against bucklin
Answers: 3
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 23:40, adhanom1271
What is the magnitude of the gravitational force acting on the earth due to the sun?
Answers: 1
You know the right answer?
What is the magnitude of the normal force that the surface exerts on the crowbar, fbar? express you...
Questions in other subjects:
![Konu](/tpl/images/cats/biologiya.png)
Biology, 21.10.2019 21:10
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/es.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 21.10.2019 21:10
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
English, 21.10.2019 21:10