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Date Posted: 19:42:31 01/30/02 Wed
Author: Marsh
Subject: column of mercury
In reply to: anonymous 's message, "question" on 19:26:59 01/30/02 Wed

See page 310. There is not simply a because ... answer for this question. Consider what we talked about yesterday. The air is full of gasses... pressure is exerted from the air around us. Is there a specific reason why it is 760mmHg as opposed to 800 or 600??? Rather, think about explaining why it supports any mercury at all and address that issue. Why is mercury supported in the column. Why is a column of mercury not supported to as great a level as a column of water?
Hope this helps to direct your focus


>Why does a column of mercury in a tube that is nverted
>in a dish of mercury have a height of about 760 mm at
>sea level?

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