Physical chemistry ideal gas

[deragon999]

1mol ideal gas at 25degC, expanded isothermally from 100atm to 10atm:

1:against constant external P of 10atm

2: Reversibly

Find w, q and change in U for both paths.

I have a value of w=-2454J, deltaU=0 so q=2454J for path 1,

And w=-5707 for path 2

Can i have some help finding q and change in U for path 2 and confirmation of my answers for both.

[deragon999]

Can someone please give this a try, its kind of urgent