- #1
ScreamingIntoTheVoid
Homework Statement
Calculate q, w, ∆E, and ∆H for the process in which 93.0 g of nitrous oxide gas (N2O) is cooled from 179°C to 55°C at a constant pressure of 4.00 atm.
Cp(N2O) = 38.70 J K-1 mol-1
Homework Equations
q= mCΔT
ΔH=n(Cp)=n(qv)ΔT
ΔE=q+w
w= -pΔV
*Probably something else too but I'm drawing a blank
The Attempt at a Solution
q= (93.0g)(38.70 K-1Mol-1)(-124°C) → -446288.4
w= -(4 atm) (101.3) (?) = ? *not 0 though*
ΔE=-446288.4+w=?
ΔH= (2.113 moles)(-446288.4)(-124°C)= A really big and incorrect number
Help?