## state function

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

megangeorge-1K
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Joined: Thu Feb 01, 2018 3:01 am

### state function

Is work a state function?

Gillian Murphy 2C
Posts: 30
Joined: Fri Sep 28, 2018 12:22 am

### Re: state function

No- both work and heat are not state functions

megangeorge-1K
Posts: 59
Joined: Thu Feb 01, 2018 3:01 am

### Re: state function

why is Internal energy a state function if it is comprised of heat and work which are both not state functions?

Vicky Lu 1L
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

### Re: state function

Work is not a state function along with heat and cell potential. Internal energy is a state function as at equilibrium, there is a set amount as delta Utotal = deltaU system + deltaU surrounding. Work and heat are path functions, so you can't find its value based on final - initial.

Katelyn Pham 4E
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

### Re: state function

State functions could be thought of in the pneumonic that Lyndon told us
PD TV HUGS (Pressure, Temperature, Velocity, H (enthalpy), U (internal energy), G (gibbs free energy), S (entropy) are all state functions:
"under Pressure, feeling Depressed, just wanna watch TV and get HUGS"