Enthalpy - thermodynamics, Mechanical Engineering

Assignment Help:

Enthalpy:

Sol: The enthalpy is total energy of gaseous system. It takes into consideration, internal energy and pressure, volume effect. Thus, it can be defined as follows:

h = u + Pv

H = U + PV

Where v is specific volume and V is the whole volume of m Kg gas. h is specific enthalpy where as H is total enthalpy of m kg gas u is specific internal energy while U is total internal energy of m kg gas. From ideal gas equation,

Pv = RT

h = u + RT

h = f (T) + RT
Thus, h is also function of temperature for perfect gas.

1381_Enthalpy.png

Therefore, h is also function of temperature for the perfect gas.

 


Related Discussions:- Enthalpy - thermodynamics

Epicyclic Gear Box or Wilson Gear Box, an arrangement of the wilson epicycl...

an arrangement of the wilson epicyclic gearbox giving four forward and one reverse speed of shaft D for an input speed of shaft E is shown in fig .3.in 1st gear Ii is fixed.in 2 ge

the entropy change of the universe, Two insulated and identical tanks are ...

Two insulated and identical tanks are filled with nitrogen.  One tank is at 1 bar, 250 o C and the other is at 5 bar, 25 o C.  If the two tanks are connected with a pipe and the v

Calculate mean effective pressure of engine, Calculate mean effective press...

Calculate mean effective pressure of engine: A 4 stroke diesel engine is having length of 20 cm and diameter of 16 cm. The engine is generating indicated power of 25 KW when

Bevel gear, What is the face cone. Difference between tooth face and face ...

What is the face cone. Difference between tooth face and face cone?

Find out the reactions at point, Find out the reactions at point: A be...

Find out the reactions at point: A beam AB is hinged at A and is supported at C. It is loaded as revealed in Figure. Find out the reactions at A and C. Solution L

Roller spot welding, Roller Spot Welding In this process, a series of ...

Roller Spot Welding In this process, a series of intermittent spot welds are made using wheels or rollers as electrodes. The rollers are power driven and are stopped while ind

Speed, how to caluculate cutting speed

how to caluculate cutting speed

Determine the mean radius of an open coiled spring, Determine the mean radi...

Determine the mean radius of an open coiled spring: Determine the mean radius of an open coiled spring of helix angle of 38 o , to give a vertical displacement of 20 mm and an

Determine the maximum stress developed in the beam, Determine the maximum s...

Determine the maximum stress developed in the beam: An I section in Figure is utilized as a beam. The beam is subjected to a bending moment of 2.5 kN m at its neutral axis. De

State about the caisson foundations, Caisson foundations Caisson founda...

Caisson foundations Caisson foundations are similar to wells, but are much large in size. They are of different types, closed end, open ended and of pneumatic type. Figure show

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