What happens to surface tension at critical point of a liquid?
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ȯ As temperature decreases, surface tension increases. Conversely, as surface tension decreases strong; as molecules become more active with an increase in temperature becoming zero at its boiling point and vanishing at critical temperature. Adding chemicals to a liquid will change its surface tension characteristics.
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- At some temperature and pressure, however, this line ends.
- Past this point, the liquid and vapor phases become indistinguishable.
- This point is called the critical point.
- This is because the molecules in the liquid state have enough energy to overcome the surface tension, which gives the meniscus its shape..
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