JEE Chemistry Club

« first day (230 days earlier) ← previous day next day → last day (2299 days later) »

AbhigyanC

01:27

@Abcd yeah... I read that chapter yesterday after crying for half an hour

AbhigyanC

02:13

Can someone account for why the enthalpy change is zero in an isothermal process?

I understand that there is no change in internal energy, but how come enthalpy also doesn't change?

dH=dU+PdV right? So according to this, PdV is also zero, hence even work done is zero, but its not actually zero... Confused :/

Ice Inkberry

@AbhigyanC Fine fine. I mentioned it briefly in the transcript above. Howas was yours?

@AbhigyanC Yeah, unless you're surprised by sudden co-ordinate.

They had functions all over the question paper before.

@AbhigyanC Do we not define enthalpy only under constant pressure?

1 hour later…

AbhigyanC

03:35

@IceInkberry I'm better at Calculus than at coordinate...

@IceInkberry Exactly. Enthalpy is the heat supplied in an equivalent constant pressure process as the one given. In this case, we have to take a constant pressure process equivalent to the isothermal process. I don't really understand exactly what that means...

@IceInkberry Good... I didn't get enough time for maths and then I see you've written you had extra time...

I could have done better, but I'm probably going to get marks in upper 60s to lower 70s...

Due to attempting less than I could have...

Ice Inkberry

04:43

@AbhigyanC Sorry, I understand nothing.

@AbhigyanC I couldn't solve questions, so yeah.

3 hours later…