一定温度下2升的恒容容器甲中,加入2moL碳和2moLCO2发生如下反应:C(s

一定温度下2的恒容容器甲中,加入2moL碳和2moLCO2发生如下反应:C(s)+CO2(g)  2CO(g)  H0,测得容器中CO2的物质的量随时间t的变化关系如图所示。

      

1)该反应的ΔS      0(填)。在        (填较高较低)温度下有利于该反应自发进行。
2)上述温度下此反应的平衡常数K=                  。(结果保留一位小数)
3)向上述平衡体系中再通入CO2,则CO2的转化率          (填增大、减小、不变、无法确定)。

4相同温度下,2升的恒容容器丙中加入4moL碳、4moLCO24moLCO。开始反应时V()       V()(填>、<、﹦)。

答案

>(1分)   较高(1分)

K=4.0 2分)         ⑶减少 1分)    ⑷>(1分)

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