Enthalpy, Chemistry

Assignment Help:

Enthalpy, H, is defined by the relationship H=U+pV. The enthalpy change, ΔH, for finite changes at constant pressure is given by the expression ΔH = ΔU+pΔV, so making the enthalpy change for a process equals to the heat exchange in a system at constant pressure. For a chemical system which releases or absorbs a gas at constant pressure, the enthalpy change is related to the internal energy change by ΔH=ΔU+Δn.RT, where Δn is the molar change in gaseous component some other process occurring.

The enthalpy, H, is defined by the expression; H=U+pV, Hence for a finite change at constant pressure:

ΔH=ΔU+ pexΔV

 

 


Related Discussions:- Enthalpy

Rusting of iron, How rusting of iron is envisaged as setting up of an elect...

How rusting of iron is envisaged as setting up of an electrochemical cell? Solution) Rusting of Iron is due to corossion. Rust is an Fe 2 O 3 .xH 2 O Theory of Rusting :

Application of Electrogravimetry, How to determine the mass of substance el...

How to determine the mass of substance electrogravimetricaly?

Thermodynamics, Calculate the free energy change of following reaction at29...

Calculate the free energy change of following reaction at298 kelvin H2+I2=2HI if the enthalpy change is 51.8816kj and the entropy change is 166.15j is this reaction thermodyanamica

Zeolite process, discuss the principle of zeolite process with chemical equ...

discuss the principle of zeolite process with chemical equation

Organic chemistry, laboratory preparation, chemical properties and uses of ...

laboratory preparation, chemical properties and uses of methylamine, benzamide and benzoic acid

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