Chemistry

Chemistry

Problem

Calculate the value of log⁡KP\log K_P for the reactions, N2(g)+3H2(g)⇌2NH3(g)\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g}) at 25°C. The standard enthalpy of formation of NH3(g)\text{NH}_3(\text{g}) is −46-46 kJ and standard entropies of N2(g)\text{N}_2(\text{g}) , H2(g)\text{H}_2(\text{g}) and NH3(g)\text{NH}_3(\text{g}) are 191, 130 and 192 JK−1mol−1\text{JK}^{-1}\text{mol}^{-1} respectively. ( R=8.3 JK−1mol−1R = 8.3 \text{ JK}^{-1}\text{mol}^{-1} )

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