In which of the following conditions, the reaction will be always spontaneous?

Question

In which of the following conditions, the reaction will be always spontaneous? (A) Δ H <0 and Δ S <0 (B) Δ H >0 and Δ S >0 (C) Δ H >0 and Δ S <0 (D) Δ H <0 and Δ S >0

Tardigrade Admin · Accepted Answer

Δ G=Δ H-T Δ S For spontaneous process, Δ G =- ve ∴ Δ H <0 and Δ S >0

Q. In which of the following conditions, the reaction will be always spontaneous?

$Δ H < 0$ and $Δ S < 0$

$Δ H > 0$ and $Δ S > 0$

$Δ H > 0$ and $Δ S < 0$

$Δ H < 0$ and $Δ S > 0$

$Δ G = Δ H - T Δ S$

For spontaneous process, $Δ G = - v e$

$∴ Δ H < 0$ and $Δ S > 0$

Q. In which of the following conditions, the reaction will be always spontaneous?

ΔH<0 and ΔS<0

ΔH>0 and ΔS>0

ΔH>0 and ΔS<0

ΔH<0 and ΔS>0

ΔG=ΔH−TΔS For spontaneous process, ΔG=−ve ∴ΔH<0 and ΔS>0

$Δ H < 0$ and $Δ S < 0$

$Δ H > 0$ and $Δ S > 0$

$Δ H > 0$ and $Δ S < 0$

$Δ H < 0$ and $Δ S > 0$

$Δ G = Δ H - T Δ S$

For spontaneous process, $Δ G = - v e$

$∴ Δ H < 0$ and $Δ S > 0$