According to the following diagram, A reduces

Question:

According to the following diagram, A reduces $\mathrm{BO}_{2}$ when the temperature is :

 

  1. $<1400^{\circ} \mathrm{C}$

  2. $>1400^{\circ} \mathrm{C}$

  3. $<1200^{\circ} \mathrm{C}$

  4. $>1200^{\circ} \mathrm{C}$ but $<1400^{\circ} \mathrm{C}$


Correct Option: , 2

Solution:

A reduces $\mathrm{BO}_{2}$ when temperature is above $1400^{\circ} \mathrm{C}$ because above $1400^{\circ} \mathrm{C}$ A has more ve $\Delta \mathrm{G}^{\circ}$ for $\mathrm{AO}_{2}$ formation than $\mathrm{B}$ to $\mathrm{BO}_{2}$ formation.

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