膦PH3與乙硼烷B2H6反應(yīng): PH3(g)+B2H6(g)→H3PBH3(g)+BH3(g) 其活化能Ea=48.01kJ·mol。若測得298K下反應(yīng)的速率常數(shù)為k1,計(jì)算當(dāng)反應(yīng)速率常數(shù)為2k1時(shí)的反應(yīng)溫度。
試用相律說明: (1)純液體在一定壓力下,沸點(diǎn)是定值; (2)純液體在一定溫度下,蒸氣壓是定值。