Isothermal Compression of Gasses - Real Chemistry

[@frankjames1955]

I got a couple questions first one is if I create Heat by pressure how long will that heat remain under constant pressure and second question does different gases heat under different compression amount

[@oshadayasiru6224]

Thank you!

[@larissa6637]

Link to the proof for enthalpy?

[@RealChemistryVideos]

HI Larissa, Thanks for the reminder. Here is a link, example 3.3.4 shows why, its actually pretty straightforward algebraically. dH = dU + d(PV). dU = 0 as discussed in the video, meanwhile PV remains constant because of Boyles Law (P1V1 = P2V2). Boyle's law applies here because n is constant ( a sealed container) and T is constant (an iosthermal process). This means d(PV) is also zero so dH = dU = d(PV) = 0 + 0, therefore dH = 0. I hope that helps! phys.libretexts.org/Bookshelves/University_Physics/Book%3A_University_Physics_(OpenStax)/Map%3A_University_Physics_II_-_Thermodynamics_Electricity_and_Magnetism_(OpenStax)/03%3A_The_First_Law_of_Thermodynamics/3.07%3A_Adiabatic_Processes_for_an_Ideal_Gas#:~:text=When%20an%20ideal%20gas%20is,work%20and%20its%20temperature%20drops.