Throttling process, Physics

Assignment Help:

In thermodynamics, the Joule-Thomson effect describes a process in which a fluid is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the environment. This procedure is called a throttling process or Joule-Thomson process. The rate of change of temperature T with respect to pressure P in a Joule-Thomson process (that is, at constant enthalpy H) is the Joule-Thomson coefficient µJT.

(a) Find a relationship between  µJT , Cp and β (volumetric coefficient of thermal expansion)

Hint : The final relationship will also include T and V)

(b) What is the value of µJT for an ideal gas?

(c) Air flows at a steady rate through a horizontal insulated pipe which contains a partially closed valve. The conditions of the air upstream from the value of 50 ºC and 5.5 bar, and the downstream pressure is 2.5 bar.  If the air is regarded as an ideal gas, what is the temperature of the air some distance downstream from the valve? Assume the change of kinetic energy of the air is negligible.  Recall that for throttling process H is constant.


Related Discussions:- Throttling process

Parsec, parsec: The unit of distance explained as the distance mention...

parsec: The unit of distance explained as the distance mentioned by an Earth-orbit parallax of 1 arc sec. It equals approximate 206 264 au, or about 3.086 x 10 16 m.

Places where friction occurs, Places where friction occurs Locate the p...

Places where friction occurs Locate the places on several mechanical devices where parts rub together. Roller skates, pulleys and the wheels of toys often required oil. Try to

Superconducting transition temperature, Q. What are the changes that take p...

Q. What are the changes that take place at the superconducting transition temperature? At the transition temperature the subsequent changes are observed (i) The electrical res

No.of electrons in outermost orbt element of atomic number, Number of elect...

Number of electrons in the outermost orbit of the element of atomic number 15 is: (1) 1        (2) 3        (3) 5        (4) 7 Ans: 5

Must all illuminator have forced ventilation, Must all illuminator have for...

Must all illuminator have forced ventilation? Usually yes, the exception being which with a massive construction that dissipate heat by transfer or radiation.

Explain the term dielectric constant, Explain the term 'dielectric constant...

Explain the term 'dielectric constant' of a medium in terms of capacitance of a capacitor. Draw a graph showing variation of resistivity of carbon with temperature

Newtons laws of motion, a body of mass M is acted upon by a force F and the...

a body of mass M is acted upon by a force F and the acceleration produced is a.if three forces each equal to F and inclined to each other at 120degrees act on the same body,the acc

Determine the change in entropy, Determine the change in entropy, in joules...

Determine the change in entropy, in joules, when 5 moles of an ideal gas expands from a value of 4 lits. to 40 lits. at 27°C. (R = 8.314 JK -1 mol -1 )

Determine free electrons per ge atom, At 400.0 K, germanium has 1.13 x 10 1...

At 400.0 K, germanium has 1.13 x 10 15 free electrons/cm 3 . How many free electrons per Ge atom are there at this temperature? At 400.0 K, silicon has 4.54 x 10 12 free

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd