A reaction is spontaneous at low temperature, but nonspontaneous at high temperature. Which of the following condition is true for the chemical reaction?

Question

A reaction is spontaneous at low temperature, but nonspontaneous at high temperature. Which of the following condition is true for the chemical reaction? (A) Δ H < 0, Δ S< 0 (B) Δ H > 0, Δ S=0 (C) Δ H < 0, Δ S > 0 (D) Δ H > 0, Δ S > 0

Tardigrade Admin · Accepted Answer

Δ H< 0, Δ S< 0 Δ G=Δ H-T Δ S When, Δ H <0 and Δ S <0, then Δ G will be negative only at low temperature.

Q. A reaction is spontaneous at low temperature, but nonspontaneous at high temperature. Which of the following condition is true for the chemical reaction?

$Δ H < 0, Δ S < 0$

$Δ H > 0, Δ S = 0$

$Δ H < 0, Δ S > 0$

$Δ H > 0, Δ S > 0$

$Δ H < 0, Δ S < 0$
$Δ G = Δ H - T Δ S$
When, $Δ H < 0$ and $Δ S < 0$ , then $Δ G$ will be negative only at low temperature.

Q. A reaction is spontaneous at low temperature, but nonspontaneous at high temperature. Which of the following condition is true for the chemical reaction?

ΔH<0,ΔS<0

ΔH>0,ΔS=0

ΔH<0,ΔS>0

ΔH>0,ΔS>0

ΔH<0,ΔS<0 ΔG=ΔH−TΔS When, ΔH<0 and ΔS<0, then ΔG will be negative only at low temperature.

$Δ H < 0, Δ S < 0$

$Δ H > 0, Δ S = 0$

$Δ H < 0, Δ S > 0$

$Δ H > 0, Δ S > 0$

$Δ H < 0, Δ S < 0$
$Δ G = Δ H - T Δ S$
When, $Δ H < 0$ and $Δ S < 0$ , then $Δ G$ will be negative only at low temperature.