Chemistry

Chemistry

Problem

The plot of log⁡10KP\log_{10} K_P against 1T\frac{1}{T} for the reaction :SO2(g)+12O2(g)⇌SO3(g)\text{SO}_2(\text{g}) + \frac{1}{2}\text{O}_2(\text{g}) \rightleftharpoons \text{SO}_3(\text{g}) is a straight line with slope =4.95×103= 4.95 \times 10^3 . Calculate KPK_P at 25°C if standard entropies for SO2(g)\text{SO}_2(\text{g}) , O2(g)\text{O}_2(\text{g}) and SO3(g)\text{SO}_3(\text{g}) are 248.2, 205.1 and 256.8 JK−1mol−1\text{JK}^{-1}\text{mol}^{-1} at 25°C respectively.

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