Select the incorrect expression from the following.

Question

Select the incorrect expression from the following. (A) Δ S text total =Δ S text system +Δ S text surr  (B) Δ S text surr =(Δ H text surr /T)=-(Δ H text sys /T) (C) Δ S text total <0 (spontaneous process) (D) Δ G=Δ H-T Δ S

Tardigrade Admin · Accepted Answer

Option (c) is incorrect. It's correct form is as follows: For a spontaneous process, Δ S>0. Rest other expressions are correct.

Q. Select the incorrect expression from the following.

$Δ S_{total} = Δ S_{system} + Δ S_{surr}$

$Δ S_{surr} = \frac{Δ H _{surr}}{T} = - \frac{Δ H _{sys}}{T}$

$Δ S_{total} < 0$ (spontaneous process)

$Δ G = Δ H - T Δ S$

Option (c) is incorrect.
It's correct form is as follows :
For a spontaneous process, $Δ S > 0$ .
Rest other expressions are correct.

Q. Select the incorrect expression from the following.

ΔStotal ​=ΔSsystem ​+ΔSsurr ​

ΔSsurr ​=TΔHsurr ​​=−TΔHsys ​​

ΔStotal ​<0 (spontaneous process)

ΔG=ΔH−TΔS

Option (c) is incorrect. It's correct form is as follows : For a spontaneous process, ΔS>0. Rest other expressions are correct.

$Δ S_{total} = Δ S_{system} + Δ S_{surr}$

$Δ S_{surr} = \frac{Δ H _{surr}}{T} = - \frac{Δ H _{sys}}{T}$

$Δ S_{total} < 0$ (spontaneous process)

$Δ G = Δ H - T Δ S$

Option (c) is incorrect.
It's correct form is as follows :
For a spontaneous process, $Δ S > 0$ .
Rest other expressions are correct.