![Close up of an icicle.](http://static.sciencelearn.org.nz/images/images/000/003/373/full/CER_ITV_Temp_Icicle_close_up_Wiki_large.jpg?1674170663)
At a temperature of 0°C or 273 K and a pressure of 1 atmosphere water freezes. This temperature and pressure is known as STP, which stands for standard temperature and pressure.
Image: Public Domain
At a temperature of 0°C or 273 K and a pressure of 1 atmosphere water freezes. This temperature and pressure is known as STP, which stands for standard temperature and pressure.
Image: Public Domain