When pressure is increased, the melting point of ice -a)Increasesb)Doe...
When pressure is increased, the melting point of ice decreases.
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When pressure is increased, the melting point of ice -a)Increasesb)Doe...
Melting Point of Ice and Pressure
Effect of Pressure on Melting Point of Ice:
When pressure is increased, the melting point of ice decreases. This is due to the fact that when pressure is applied to ice, it is converted into a more compact form. This results in the formation of a more ordered arrangement of water molecules, which in turn leads to a decrease in the volume of the ice. The decrease in volume leads to a decrease in the melting point of the ice.
Explanation:
The melting point of ice is a function of pressure. At atmospheric pressure (1 atm), the melting point of ice is 0°C. However, if the pressure is increased, the melting point of ice decreases. This can be seen from the phase diagram of water.
At atmospheric pressure (1 atm), the melting point of ice is 0°C. However, if the pressure is increased to 2000 atm, the melting point of ice decreases to -22°C. This means that at a pressure of 2000 atm, ice will melt at a temperature of -22°C.
Impurities in Ice:
The presence of impurities in ice can also affect its melting point. When impurities are present, they disrupt the ordered arrangement of water molecules, and this can lead to an increase or decrease in the melting point of ice, depending on the nature of the impurities.
In conclusion, when pressure is increased, the melting point of ice decreases. This is due to the fact that pressure causes ice to become more compact, leading to a more ordered arrangement of water molecules and a decrease in the volume of the ice. The presence of impurities in ice can also affect its melting point.
When pressure is increased, the melting point of ice -a)Increasesb)Doe...
Effect of Pressure on Melting Point of Ice
When pressure is applied to ice, its melting point decreases. This phenomenon is known as the pressure melting point depression.
Explanation:
- Ice melts at 0°C at normal atmospheric pressure. When pressure is applied to ice, it disrupts the crystal structure of ice, causing the ice to melt at a lower temperature.
- The pressure acts on the ice by squeezing the molecules closer together, making it easier for them to break free from their crystalline structure.
- As pressure increases, the melting point of ice decreases. For example, at a pressure of 1 atmosphere, the melting point of ice is 0°C, but at a pressure of 2100 atmospheres, the melting point of ice is -22°C.
- This phenomenon is used in various applications such as high-pressure food processing, ice skating, and ice climbing.
Conclusion:
In conclusion, when pressure is applied to ice, the melting point of ice decreases. This phenomenon is due to the disruption of the crystal structure of ice by pressure, making it easier for the molecules to break free and melt.