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

Define corrosion-resistant nickel-based alloys, Q. Define corrosion-resista...

Q. Define corrosion-resistant nickel-based alloys? The corrosion-resistant nickel-based alloys offer a significant improvement in corrosion resistance to sulphuric acid over th

Illustrate kinematics links, (a) Illustrate Kinematics Links, Chin, Mechani...

(a) Illustrate Kinematics Links, Chin, Mechanism and Pair with their classification and examples. (b) Compare between structure and Machine.

Corrosion of bfw pump, Q. Show Corrosion of BFW Pump? BFW pumps are in ...

Q. Show Corrosion of BFW Pump? BFW pumps are in high-pressure high-temperature service and may be subject to cavitation and erosion-corrosion. Also overheating of these pumps i

What do you mean by alloys, Q. What do you mean by Alloys? Metallic mat...

Q. What do you mean by Alloys? Metallic materials that contain alloying elements, including chromium (Cr), cobalt (Co), Columbium or niobium (Cb or Nb), copper (Cu), iron (Fe),

Rotary vacuum, Explain with the aid of a sketch how a rotary vacuum (ROVAC)...

Explain with the aid of a sketch how a rotary vacuum (ROVAC) filter works. Derive describing equations to predict the ROVAC's filtration performance in terms of the effect of drum

Explain working of tubesheets, Q. Explain working of Tubesheets? The tu...

Q. Explain working of Tubesheets? The tube and tube pitch selected shall be approved by WorleyParsons Canada. The preferred tube pitch shall be a minimum of 1.3 x tube OD and

Short-term scheduling and control, Short-Term Scheduling And Control Th...

Short-Term Scheduling And Control The major objective at this stage is to make sure the efficient and smooth operation of the system in the event of unforeseen disturbances. Th

Thormodynamics, define thormodynamics and its laws

define thormodynamics and its laws

Explain the semi-automatic extension of screw conveyor, Explain the Semi-Au...

Explain the Semi-Automatic Extension of screw conveyor "Semi-Automatic Extension of screw conveyor as per the screed width by telescopic-tube" Procedure: The extension of

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