
William W. answered 02/20/22
Math and science made easy - learn from a retired engineer
Think about water: From extremely cold all the way up to 32°F or 0°C the water is solid (ice). The melting point is 0°C, so above 0°C the ice turns to a liquid (water). It stays a liquid (water) all the way up to its boiling point of 100°C.
In your case, since the melting point is -219°C and the boiling point is -183°C then: