For the homogeneous reaction xA+yBleftharpoons lY+mZ Δ H° =-30 kJ mol-1 and Δ S=-100 JK mol-1 At what temperature the reaction is at equilibrium?

Question

For the homogeneous reaction xA+yBleftharpoons lY+mZ Δ H° =-30 kJ mol-1 and Δ S=-100 JK mol-1 At what temperature the reaction is at equilibrium? (A)  50° C  (B)  250° C  (C)  100K  (D)  27° C

Tardigrade Admin · Accepted Answer

For the homogeneous reaction xA+yBleftharpoons lY+mZ Δ H° =- 30 kJ textmo textl-1, Δ S=- 100 J textmo textl-1K-1 By using Δ G=Δ H-T⋅ Δ S At equilibrium: Δ G=0 ∴ Δ H=T⋅ Δ S T=(Δ H/Δ S)=(-30× 103J mol-1/-100 J mol-1 K-1) T=300 K =300-273=27° C

Q. For the homogeneous reaction $x A + y B ⇌ l Y + m Z$ $Δ H^{\circ} = - 30 k J m o l^{- 1}$ and $Δ S = - 100 J K m o l^{- 1}$ At what temperature the reaction is at equilibrium?

$50^{\circ} C$

$250^{\circ} C$

$100 K$

$27^{\circ} C$

Q. For the homogeneous reaction xA+yB⇌lY+mZ ΔH∘=−30kJmol−1 and ΔS=−100JKmol−1 At what temperature the reaction is at equilibrium?

50∘C

250∘C

100K

27∘C

For the homogeneous reaction xA+yB⇌lY+mZ ΔH∘=−30kJmol−1, ΔS=−100Jmol−1K−1 By using ΔG=ΔH−T⋅ΔS At equilibrium: ΔG=0 ∴ ΔH=T⋅ΔS T=ΔSΔH​=−100Jmol−1K−1−30×103Jmol−1​ T=300K =300−273=27∘C

Q. For the homogeneous reaction $x A + y B ⇌ l Y + m Z$ $Δ H^{\circ} = - 30 k J m o l^{- 1}$ and $Δ S = - 100 J K m o l^{- 1}$ At what temperature the reaction is at equilibrium?

$50^{\circ} C$

$250^{\circ} C$

$100 K$

$27^{\circ} C$