Joule''s law and enthalpy - thermodynamics, Mechanical Engineering

Assignment Help:

Joule's Law and Enthalpy - Thermodynamics:

Joule's Law

Joules law experiment is based on the constant volume process, and it state that I.E. of perfect gas is a function of absolute temperature only.That is, 

U = f(T)

dU = dQ - dW; It define constant volume that is
dw = 0 dU = dQ; but dQ = mCvdT, at constant volume

dU = mCvdT; for a perfect gas

Enthalpy

It is sum of I.E. (U) and pressure - volume product.

H + pv

For unit mass pv =RT

  h = CVT + RT = (CV  + R)T = CPT = (dQ)P

  H = mCPT

  dH = mCPdT


Related Discussions:- Joule''s law and enthalpy - thermodynamics

Design safe areas for plant, Q. Design Safe Areas for plant? A Safe Are...

Q. Design Safe Areas for plant? A Safe Area in this manual is regarded as a space that is not ranked as being a designated hazardous area by the relevant Regional or Country st

Thermal Systems Analysis and Design, Create Visual Basic function ffactor(R...

Create Visual Basic function ffactor(Re, rr) that calculates the Darcy-Weisbach friction factor in a pipe or duct, where Re is the Reynolds No. and rr is the relative roughness, us

Explain concept of reaming of radial drilling machine, Explain concept of R...

Explain concept of Reaming and boring of radial drilling machine Reaming Reaming is accurate way of sizing and finishing the pre-existing hole. Multi tooth cutting tool. A

Power sources-modern arc welding power sources, MODERN ARC WELDING POWER SO...

MODERN ARC WELDING POWER SOURCES Recent advances in the field of solid state power electronics have helped to improve the status of welding power sources. With the development rel

Hardness of water, hardness of bore well water is less than sea water .ju...

hardness of bore well water is less than sea water .justify

Computer aided synthesis, The basic aim of synthesis in design process is t...

The basic aim of synthesis in design process is to provide information which can tell you how to improve the design. In general the synthesis process gives many alternatives of

Control system, hi i have an assignment in control system can u do it ?

hi i have an assignment in control system can u do it ?

Material science, what is the main process to get steel hard

what is the main process to get steel hard

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