Question

The temperature at which the reaction

$A{g}_{2}O\left(s\right)\to 2Ag\left(s\right)+\frac{1}{2}{O}_2(g)$ at 1 atmospheric pressure will be in equilibrium at ___K. The value of $\Delta H$ and $\Delta S$ for the reaction are 30.58 kJ and $66.11J{K}^{-1}$ respectively and these value do not change much with temperature.

• A. 462.6 K
• B. 486.4 K
• C. 364.5 K
• D. 521.2 K

Answer 1

Answer: (A)

$A{g}_{2}O\left(s\right)\to 2Ag\left(s\right)+\frac{1}{2}{O}_2(g)$

The reaction will be in equilibrium at temperature $T=\frac{\Delta H}{\Delta S}=\frac{30.58\times 10^3}{66.11}=462.6K$