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一、有关化学反应速率的试题1.考查外界因素对化学反应速率的影响例1(福建理综卷)在不同浓度(c)、温度(T)条件下,蔗糖水解的瞬时速率(v)见表1.下列判断不正确的是()(A)a=6.00(B)同时改变反应温度和蔗糖的浓度,v可能不变(C)b<318.2(D)不同温度时,蔗糖浓度减少一半所需的时间相同解析:由表格数据可知,在328.2 K时,蔗糖的浓度越大,蔗糖水解的速率越快;根据浓度与速率的变化关系可知,蔗糖的
First, the chemical reaction rate of the test 1. To examine the impact of external factors on the chemical reaction rate Example 1 (Fujian Science Volume) at different concentrations (c), temperature (T) conditions, the instantaneous rate of sucrose hydrolysis (v) see Table 1. The following judgment is incorrect () (a) a = 6.00 (B) Simultaneous changes in reaction temperature and sucrose concentration, v may not change (C) b <318.2 (D) At different temperatures, the sucrose concentration is reduced by half The same time required for analysis: The table data shows that at 328.2 K, the greater the concentration of sucrose, the faster the rate of sucrose hydrolysis; according to the relationship between the concentration and the rate of change, sucrose