- #1
goku
- 6
- 0
water freezes instantly on very low pressure, irrespective the temp being well above zero. pls explain why? .what can be added to water so that it does not freeze at very low preesure (15mtorr)?
Water freezes at low pressure because the molecules of water are more spread out, making it harder for them to form strong bonds and stay in a liquid state. As pressure decreases, the molecules have more room to move and form the rigid structure of ice.
Low pressure decreases the melting point of water, meaning it will freeze at a lower temperature. This is because the decrease in pressure allows the molecules to move more freely and form a crystalline structure at a lower temperature.
The relationship between pressure and freezing point is inverse. As pressure decreases, the freezing point of water also decreases. This is because the molecules are less restricted and can more easily form into a solid state.
Under normal atmospheric pressure, water will not freeze at room temperature. However, at extremely low pressures, such as in outer space, water can freeze at room temperature.
Low pressure causes the molecules in ice to be less tightly packed, resulting in a lower density compared to liquid water. This is why ice floats on water, as it is less dense and therefore less heavy than the surrounding liquid.