A Gas (Cv, m =5/2 R) behaving ideally was allowed to expand reversibly and adiabatically from 1 litre to 32 litre. It's intial temperature was 327°C The molar heat enthalpy change ( in j/mol) for the process is My attempt From polytropic equation. $C_v$=R/ $\Gamma-1$ Solving this gives me ...

Two main points. Firstly, there is an error in the diagram in the question. A hydrogen is missing from the product formed in the Y branch. Secondly, the properties of platinum and nickel are a bit different. One of the key differences is the strength of a $\ce{M-CH3}$ bond. The bond dissociation...

I have learnt that internal energy, $U$, is a state function and it only depends on temperature... So if $\Delta T = 0$ then $\Delta U = 0$. However when I was studying exothermic and endothermic reactions it was written in my textbook that at a constant temperature and pressure, $\Delta U$ is n...

First of all, I should clarify that hydrogenation of epoxides does not always proceed with such predictable regioselectivity. Often it depends on the substituents present, as well as their relative configuration (for example, cis/trans for 2,3-disubstituted epoxides).[1] In Reaxys I find no reco...