You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Reaction Quotient

Value of G∘...

Question

Value of $△ G^{\circ}$ for formation of $C r_{2} O_{3}$ and $A l_{2} O_{3}$ are $- 540 k J m o l^{- 1}$ and $- 827 k J m o l^{- 1}$ respectively. Is reduction possible of $C r_{2} O_{3}$ by $A l$ ?

Open in App

Solution

The negative value of $△ G$ means the compound is more stable.
Here, the negative value of $△_{f} G$ of $A l_{2} O_{3}$ is more than that of $C r_{2} O_{3} .$
Therefore, $A l_{2} O_{3}$ is more stable than $C r_{2} O_{3}$
As a result, the formation of $A l_{2} O_{3}$ by reduction of $C r_{2} O_{3}$ with $A l$ is possible.
Therefore it is possible.

Suggest Corrections

Similar questions

Q. The value of

Δ_{f} G^{0}

for formation of

C r_{2} O_{3}

- 540 k J m o l^{- 1}

and that of

A l_{2} O_{3}

- 827 k J m o l^{- 1}

. Is the reduction of

C r_{2} O_{3}

possible with

A l

The value of for formation of Cr₂O₃is − 540 kJmol⁻¹ and that of Al₂ O₃ is − 827 kJmol⁻¹. Is the reduction of Cr₂O₃ possible with Al?

Q. The value of

Δ_{f} G^{0}

for

C r_{2} O_{3}

540 {kJ mol}^{- 1}

and that of

A l_{2} O_{3}

- 827 {kJ mol}^{- 1}

. Is the reduction of

C r_{2} O_{3}

A l

is feasible reaction?

Q. For the formation of

C r_{2} O_{3}

and

A l_{2} O_{3}

, values of

Δ_{f} G^{o}

are 540 kJ mol

^{- 1}

and -827 kJ mol

^{- 1}

respectively. What will be the possibility for reaction of

C r_{2} O_{3}

by Al?

The value of $△_{f} G^{\circ}$ for formation of $C r_{2} O_{3}$ is - 540 KJ/mol and that of $A l_{2} O_{3}$ is - 827 kj/ mol. Is the reduction of $C r_{2} O_{3}$ possible with AI?

Join BYJU'S Learning Program

Value of △G∘ for formation of Cr2O3 and Al2O3 are −540 kJ mol−1 and −827 kJ mol−1 respectively. Is reduction possible of Cr2O3 by Al?

The negative value of △G means the compound is more stable.Here, the negative value of △fG of Al2O3 is more than that of Cr2O3.Therefore, Al2O3 is more stable than Cr2O3As a result, the formation of Al2O3 by reduction of Cr2O3 with Al is possible.Therefore it is possible.

Value of $△ G^{\circ}$ for formation of $C r_{2} O_{3}$ and $A l_{2} O_{3}$ are $- 540 k J m o l^{- 1}$ and $- 827 k J m o l^{- 1}$ respectively. Is reduction possible of $C r_{2} O_{3}$ by $A l$ ?