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用两根保留铜帽的大号电池碳棒,铜帽上焊接导线、一支小试管截去底部,按附图所示装置好,便可进行实验。 注意:试管应和碳棒配套;碳棒与碳棒之间间隔不宜太大;加热时试管应用试管夹夹稳,并保持平衡。 倘若能在课前用此装置先做一遍实验,且待电解质熔化时将碳棒稍许抵紧,则效果更佳。 此装置尤适宜于课堂演示实验。实验过程中随电解质溶化程度,则电流强弱的变化直接
Use two large battery carbon rods with copper caps, copper wires on the caps, and a small tube to cut off the bottom. Note: The test tube should be matched with the carbon rod; the spacing between the carbon rod and the carbon rod should not be too large; when the tube is heated, the test tube clip can be clamped and kept in balance. If the experiment can be done with this device before class, and the carbon rod is slightly tight when the electrolyte is melted, the effect is better. This device is particularly suitable for classroom demonstration experiments. During the experimental process, the electrolyte melts, and the change of the current is directly