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【多选题】
关于胶体凝聚的机理正确说法是( ):
A.
胶团之间存在斥力势能，也存在引力势能，斥力、引力和总势能随粒子间距离的变化而变化。
B.
溶胶的相对稳定性和凝聚取决于斥力势能和引力势能的相对大小，但加入电解质对斥力势能的影响明显，影响溶胶的稳定性。
C.
当溶液离子强度较小时，总势能曲线上出现较大势能峰（ V max ），排斥作用占较大优势，体系保持分散稳定状态。
D.
当溶液离子强度增大到一定程度时，一部分颗粒有可能超越该势能峰。吸引力占优势，使颗粒间继续接近，当其达到总势能曲线上近距离的极小值 ( V min ) 时，两颗粒就可以结合在一起。
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【简答题】In no more than 80 words describe what happened form the time the journalis set out to get the facts. Do not includ anything that is not in the last paragraph.
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