Yes and no. No surface tension implies vanishing intermolecular forces, so the liquid would not be cohesive and would expand in all directions to the volume of the room… which is pretty much the definition of a gas. Not quite though: supercritical fluids also do this as long as temperature and pressure remain high enough, and are indeed useful in niche applications industrially.
Can we make liquids like that? Sounds useful in some situations.
Yes and no. No surface tension implies vanishing intermolecular forces, so the liquid would not be cohesive and would expand in all directions to the volume of the room… which is pretty much the definition of a gas. Not quite though: supercritical fluids also do this as long as temperature and pressure remain high enough, and are indeed useful in niche applications industrially.
Liquid with low to none surface tension? Relatively possivle, tensioactives and additives within soaps and washing up liquids can do that.
And lakes affected by this are biologically damaged or dead, as surface tension is essntial to life.
Edit: that line is something they would absolutely add to an ATHF episode, but the consequences would be absurd as usual.