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Surface tension occurs due to the tendency of liquid molecules to favor their own kind. Surface tension is important in fluid multiphase systems typically at small length and velocity

8 votes

If the pressure inside and outside a balloon balance, then why does air leave when it pops?

until its inner pressure equals to the atmospheric pressure The inference that the balloon is not growing (or shrinking) because the pressure is the same is not correct. The balloon is not growi …
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