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Ideal Gas in a Piston

This app simulates an ideal gas within a piston. Place your mouse over the system variables below to see a detailed descriptions of each.

To make sure the system is not over or under defined, two of the locks on the system must be in place. For example, the system can be adiabatic and isomolar (not heat flux, and constant moles), but it could not also be isothermal (constant temperature) and change from one state to another. Click on locks to lock or unlock properties, and click and drag to move various properties or the piston. Click on a variable symbol to solve for an unknown value of that variable.

'); top.consoleRef.document.close(); } if (iscsv && document.getElementById("controls_download")){ document.getElementById("controls_download").href="data:text/plain;charset=utf-8,"+escape(rText); } } function submitAnswers(){//turn in the answers document.getElementById('hiddenTrackData').value=trackdata; document.getElementById('options').value=options_txt; document.getElementById('for_credit').value=for_credit; for (var k in vars) { if (document.getElementById('hid='+k)){ document.getElementById('hid='+k).value=vars[k]['x'];//put answers into the hidden form fields } if (k==thequestion) {//the unknown that is being solved for document.getElementById('thequestion').value+=k+',';//put answers into the hidden form fields } if (vars[k]['isUnknown']) {//an unknown that may not be the solution document.getElementById('unknowns').value+=k+',';//put answers into the hidden form fields } } document.forms["Applet_Form"].submit();//and submit }

Piston Containing an Ideal Gas

University of Utah - Department of Chemical Engineering
by Anthony Butterfield

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App Noifications:

Gas


He

H2

N2

O2

Air

CO2

CH4

C3H8

X

Properties

MW
γ
n
S0
Vmax
Initial State
P1
V1
T1
n1
m1
Vm1
ρ1
CP,1
CV,1
U1
H1
S1
v1

update
Energy
W
Q

reset
Final State
P2
V2
T2
n2
m2
Vm2
ρ2
CP,2
CV,2
U2
H2
S2
v2
Change
ΔP
atm
ΔV
L
ΔT
K
Δn
mol
Δm
g
ΔVm
m3/mol
Δρ
kg/m3
ΔCP
J/mol·K
ΔCV
J/mol·K
ΔU
J/mol
ΔH
J/mol
ΔS
J/mol·K
Δv
m/s