Using the data provided, find the value of equilibrium constant for the following reaction at 298 {\K} and 1 atm pressure. {\NO}_{{(g})}+\frac{1}{2} {\O}_{2({g})} \⇌{\NO}_{2}({g}) \\Delta_{f} \H^{0}({\NO}_{({g})})=90.4 {\kJ} {\mol}^{-1} \\Delta_{f} \H^{0}(\NO_{2(g)})=32.48 { \kJ}{\mol}^{-1} \\Delta\S^{0} @ 298 \K=-70.8 {\JK^{-1} \mol^{-1} {\antilog}(0.50)=3162

AP EAPCET 19-Aug-2021 Shift 2 Paper

Section: Chemistry

Question : 135 of 160

Marks: +1, -0

Using the data provided, find the value of equilibrium constant for the following reaction at 298K and 1 atm pressure. NO(g)+

O2(g)⇌NO2(g)
ΔfH0(NO(g))=90.4‌kJ‌mol−1
ΔfH0(NO2(g))=32.48‌kJ‌mol−1
ΔS0@298K=−70.8JK−1mol−1
antilog(0.50)=3162

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