请帮忙翻译下面这段对我来说比较棘手的英文！？ 真的很难吗？ at a given temperature ,the rate of a reaction varies directly as the product of the concentrations of the reactants in the slowest step.for the reaction h2(g)+i2(g)→2hi(g),the rate expression was rate=k[h2][i2].for the general reaction a+b→c,the rate expression would be rate=k[a][b].hydrogen iodide decomposes into hydrogen and iodine.the equation is 2hi(g) →h2(g)+i2(g).this reaction is hi+hi→h2+i2.the rate expression(if it is a one-step reaction) is rate =k[hi][hi],or rate =k[hi]2. 在某一给定的温度下，在最慢的步骤中，反应速率直接随产物、反应物浓度的变化而变化。对于反应h2(g)+i2(g)→2hi(g),反应速率表达式为：速率=k[h2][i2]. 对于一般反应 a+b→c，反应速率表达式为：rate=k[a][b].碘化氢分解为氢气和碘。反应方程式为2hi(g)→h2(g)+i2(g).此反应为hi+hi→h2+i2. 反应速率表达式（如果是一步反应）为速率=k[hi][hi]，或者速率=k[hi]2.查看更多
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