将1molSO2和1molO2通入一体积不变的密闭容器中,在一定温度和催化剂

 1molSO21molO2通入一体积不变的密闭容器中,在一定温度和催化剂作用下,反应达到平衡,SO30.3mol。此时若移走0.5molO20.5molSO2,则反应达到新的平衡时,SO3的物质的量为:

A0.3mol                     B0.15mol       

C.小于0.15mol                D.大于0.15mol,小于0.3mol

答案

C

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