Question

Calculate ${\Delta }_r{G}^o$ for conversion of oxygen to ozone, 3/2 $O_2\left(g\right)\to O_2\left(g\right)$ at 298 K; if $K_p$ for this conversion is $2.47\times {10}^{-29}$. [Given: $lo{g}_{10}2.47=0.392$]

Answer 1

$\frac{3}{2}{O}_2\to O_2$

${\Delta }_r{G}^{\circ }=-RTln{K}_p$

$=-8.3\times 298ln(2.47\times {10}^{-29})$

$=-8.3\times 298\times 2.303(log2.47-29)$

$=-8.3\times 2.303\times 298(0.392-29)$

$=162958$ Joule