- #1
ScottHendo
- 2
- 0
Homework Statement
Adiabatic expansion of an ideal gas is carried out in a steady flow process. The initial pressure of the gas is 2.5 bar. The volume is expanded from 1.2m3 to 3.8m3. Heat capacity ratio (γ) = 1.42. Calculate enthalpy change of the process.
Homework Equations
PV = nRT
W = ∫ PdV
ΔH = ΔU + Δ(PV)
PVγ = constant
The Attempt at a Solution
Calculate work done by using work done for steady flow process equation:
W = ∫ PdV with PVγ= constant to get W = constant ∫ (dV)/Vγ .
Carry out the integration to get W.
-W = ΔU
Then use ΔH = ΔU + Δ(PV) to find enthalpy change.
I am looking for any help on 1) to make sure I am on the right track and 2) what to do with the Δ(PV) part of the last equation.
Thanks in advance!