Freezing Point of Water under Pressure Calculator

The freezing point of water decreases as pressure increases. At higher pressures, water can remain in a liquid state at temperatures below 0 degrees Celsius (32 degrees Fahrenheit). For example, at 65 psi, water may freeze at a temperature lower than 0 degrees Celsius due to the increased pressure’s influence on its phase diagram.

Pressure (psi)	Pressure (kPa)	Freezing Point (°C)	Freezing Point (°F)
0	0	0.0	32.0
10	68.95	-0.7	30.7
20	137.9	-1.5	29.3
30	206.8	-2.2	28.0
40	275.8	-2.8	26.9
50	344.7	-3.4	25.9
60	413.7	-3.9	25.0
70	482.6	-4.4	24.1
80	551.6	-4.8	23.4
90	620.5	-5.3	22.5
100	689.5	-5.7	22.3

FAQs

What is the freezing point of water at any pressure? The freezing point of water varies with pressure. At standard atmospheric pressure (1 atm or 101.3 kPa), water freezes at approximately 0 degrees Celsius (32 degrees Fahrenheit). As pressure increases, the freezing point decreases, and as pressure decreases, the freezing point increases.

Is pressurized water harder to freeze? Yes, pressurized water is harder to freeze. Increasing pressure on water lowers its freezing point, so it requires lower temperatures to freeze.

Does water freeze at 32 degrees under pressure? No, under standard atmospheric pressure, water freezes at 0 degrees Celsius (32 degrees Fahrenheit). At 1 atm of pressure, it does not freeze at 32 degrees Fahrenheit.

What is the freezing point of water at 65 psi? At 65 psi (about 448 kPa), the freezing point of water would be lower than at standard atmospheric pressure. The exact temperature would depend on the pressure-temperature relationship for water, but it would be significantly below 0 degrees Celsius (32 degrees Fahrenheit).

How much does pressure affect freezing point? Pressure has a substantial effect on the freezing point of water. Generally, as pressure increases, the freezing point decreases, and as pressure decreases, the freezing point increases. This relationship is described by the phase diagram of water.

Does freezing point vary with pressure? Yes, the freezing point of water varies with pressure. It is not a constant value and changes according to the pressure applied.

Can you freeze water with compressed air? You can’t freeze water simply by compressing air. Compressing air can increase its temperature, but it won’t directly freeze water. To freeze water, you need to reduce its temperature below its freezing point.

How do you make supercooled water? Supercooled water is water that exists in a liquid state below its freezing point. To make supercooled water, you typically start with pure, distilled water and carefully cool it below its freezing point without disturbing it. This can be done by using very clean containers and avoiding any nucleation sites that might trigger freezing.

How cold is instant freeze water? “Instant freeze” typically refers to a rapid freezing process. The temperature at which water can freeze almost instantly depends on several factors, including the initial temperature of the water and the conditions in which it is frozen. In very cold conditions, water can freeze almost instantly upon contact with a cold surface, well below 0 degrees Celsius (32 degrees Fahrenheit).

Will PVC pipe freeze underground? PVC pipes are more resistant to freezing than metal pipes, but they can still freeze if exposed to very low temperatures for an extended period. In most cases, underground PVC pipes should be buried below the frost line to prevent freezing.

Will my pipes freeze at 30 degrees? Pipes can freeze at temperatures above 30 degrees Fahrenheit (0 degrees Celsius) if they are exposed to cold air for an extended period. The likelihood of freezing depends on various factors, including insulation, pipe material, and wind chill.

Do pipes always burst when they freeze? Not necessarily. Pipes may not burst if they are frozen but do not experience a significant expansion of ice inside them. However, when water freezes, it expands, and this expansion can lead to pipe bursts if the pressure becomes too great.

How much pressure does it take to solidify water? To solidify water, you need to reduce its temperature to its freezing point. The pressure required to solidify water depends on the temperature. At standard atmospheric pressure (1 atm), water solidifies at 0 degrees Celsius (32 degrees Fahrenheit).

Can water freeze in a sealed container? Yes, water can freeze in a sealed container if the temperature inside the container drops below its freezing point. However, it’s important to note that as water freezes, it expands, which could potentially lead to the container breaking if it’s not designed to withstand the pressure from ice expansion.

What is the highest temperature water can freeze at? Under normal conditions, the highest temperature at which water can freeze is 0 degrees Celsius (32 degrees Fahrenheit) at standard atmospheric pressure. However, under extreme pressure, water can remain liquid at temperatures well below this point.

Does lower freezing point mean harder to freeze? No, a lower freezing point means that a substance is easier to freeze. It means that the substance will solidify at a higher temperature compared to a substance with a higher freezing point.

Can water get colder than 32 degrees? Yes, water can get colder than 32 degrees Fahrenheit (0 degrees Celsius) if it’s in a supercooled state. In a supercooled state, water remains liquid below its freezing point but can quickly freeze if disturbed.

How thick is high-pressure freezing? The thickness of ice formed under high-pressure freezing conditions would depend on various factors, including the pressure applied and the initial temperature of the water. Typically, higher pressure would result in ice forming at a lower temperature and potentially thicker ice.

Does high-pressure water freeze faster? High-pressure water can freeze faster than water at lower pressure if the pressure reduces the freezing point of the water, causing it to solidify at a lower temperature.

What affects freezing point the most? Pressure and temperature are the primary factors that affect the freezing point of a substance. Pressure has a more significant effect on water’s freezing point than most other factors.

Why do you drain water from compressed air? Water can condense in compressed air systems due to temperature changes, and this can cause corrosion and damage to equipment. Draining water helps maintain the quality and efficiency of the compressed air system.

What temperature does compressed air freeze? The freezing point of water vapor in compressed air depends on the pressure and humidity. At standard atmospheric pressure, water vapor freezes at 0 degrees Celsius (32 degrees Fahrenheit), but the freezing point can be lower at higher pressures.

Can windchill freeze water? Windchill does not directly freeze water, but it can accelerate the cooling of objects, including water, by removing heat more rapidly. It can make it easier for water to freeze by reducing the time it takes to reach the freezing point.

Why does Fiji water not freeze? Fiji water can freeze under the right conditions. The freezing point of Fiji water, like any other pure water, is around 0 degrees Celsius (32 degrees Fahrenheit). If you expose Fiji water to temperatures below its freezing point, it will freeze just like any other water.

Can I drink supercooled water? You can drink supercooled water, but it’s essential to be cautious. Supercooled water can freeze upon contact with something, like the warmth of your mouth or lips, which can result in unexpected ice formation.

Will 100% pure water freeze? Yes, 100% pure water will freeze. It freezes at the same temperature as regular water, which is around 0 degrees Celsius (32 degrees Fahrenheit) at standard atmospheric pressure.

Why does bottled water not freeze until shaken? Bottled water can freeze without shaking if it is cooled below its freezing point. Shaking can introduce nucleation sites that encourage ice formation, making it freeze more quickly.

What liquid freezes things instantly? Liquids like liquid nitrogen and liquid helium, which have extremely low temperatures, can freeze objects almost instantly upon contact due to their rapid heat-absorbing properties.

What happens if you throw boiling water into freezing air? When you throw boiling water into freezing air, the water will rapidly evaporate into steam. If the air is cold enough, the steam can quickly condense into tiny ice crystals, creating a dramatic “boiling water freeze” effect.

Is PEX better than PVC for freezing? PEX (cross-linked polyethylene) is generally more resistant to freezing and less likely to burst than PVC (polyvinyl chloride) pipes. However, proper insulation and installation are essential for both types of pipes in freezing conditions.

How deep to bury water lines to keep from freezing? The depth at which water lines should be buried to prevent freezing varies depending on your location and local frost depth. In colder climates, water lines are often buried at least 12-24 inches (30-61 centimeters) below the frost line to protect them from freezing.

How does PEX pipe hold up to freezing? PEX pipes are more flexible and resistant to freezing than rigid pipes like PVC or copper. They can expand slightly if water inside them freezes, reducing the risk of bursting. However, proper insulation and installation are still essential in cold climates.

What temperature should I keep my house so pipes don’t freeze? To prevent pipes from freezing, it’s generally recommended to keep your house heated to at least 55 degrees Fahrenheit (13 degrees Celsius) or higher, especially in areas prone to freezing temperatures.

Will my pipes freeze in one night? Whether pipes freeze in one night depends on various factors, including the temperature, insulation, and the length of exposure to cold temperatures. In extremely cold conditions, pipes can freeze in just a few hours if not adequately insulated or protected.

Will pouring hot water down the drain unfreeze pipes? Pouring hot water down a drain can help thaw frozen pipes if the blockage is near the drain opening. However, it may not be effective for thawing pipes deep within the plumbing system.

Where are pipes most likely to freeze? Pipes are most likely to freeze in areas that are exposed to extreme cold, such as unheated crawlspaces, attics, or exterior walls. Pipes located near exterior openings or in poorly insulated areas are particularly vulnerable.

How do I make sure frozen pipes don’t burst? To prevent frozen pipes from bursting, you can take steps like insulating pipes, allowing faucets to drip during freezing temperatures, and using heat tape or pipe insulation. Proper insulation and maintaining a safe minimum temperature in your home are key preventive measures.

At what pressure does liquid water no longer exist? Liquid water can exist at a wide range of pressures and temperatures. However, at extremely high pressures, such as those found deep within the Earth’s mantle, water can exist in exotic forms, like high-pressure ice phases, rather than as a conventional liquid.

Can water be below freezing and not freeze? Yes, supercooled water is a state where water remains in a liquid form below its freezing point. This can occur when the water is exceptionally pure and does not encounter nucleation sites that trigger freezing.

How much does water compress under pressure? The compressibility of water varies with pressure, but it is generally considered to be nearly incompressible at standard atmospheric pressure. However, under extremely high pressures, water can become more compressible.

Will water with alcohol freeze? The freezing point of water-alcohol mixtures depends on the concentration of alcohol. Adding alcohol to water lowers its freezing point. For example, a solution of 20% alcohol and 80% water will have a lower freezing point than pure water.

Can you freeze water if it can’t expand? Yes, you can freeze water that can’t expand, but as it freezes, it may generate a significant amount of internal pressure, potentially causing damage to the container holding it.

How long can water sit in a sealed container? The duration for which water can sit in a sealed container without issues depends on various factors, including the purity of the water, the quality of the container, and the conditions (e.g., temperature and light exposure). In general, sealed water containers can remain safe to drink for an extended period, often months to years.

Why isn’t the bottom of the ocean frozen? The bottom of the ocean is not frozen because the enormous pressure at depth raises the freezing point of water significantly. In the deep ocean, temperatures are typically above freezing due to the high-pressure conditions.

Does salt make water freeze faster? No, salt does not make water freeze faster. In fact, it has the opposite effect. Adding salt to water lowers its freezing point, which makes it harder for the water to freeze. This property is why salt is used for de-icing roads and sidewalks.

How cold is dangerously cold water? Dangerously cold water is typically considered to be water below 50 degrees Fahrenheit (10 degrees Celsius). Prolonged exposure to water at this temperature can lead to hypothermia and other cold-related injuries.

Does increasing pressure increase freezing point? Increasing pressure typically lowers the freezing point of a substance like water. So, under higher pressure, a substance is more likely to freeze at a lower temperature.

Why is fast freezing better than slow freezing? Fast freezing is often preferred in food preservation because it forms smaller ice crystals, which can help preserve the texture and quality of the food better than slow freezing, which can lead to larger ice crystals that damage cell structures.

How cold was the water when the Titanic sank? When the Titanic sank in 1912, the water temperature in the North Atlantic Ocean was estimated to be around 28 degrees Fahrenheit (-2 degrees Celsius). This frigid water played a significant role in the survival of passengers and crew.

What is the coldest water can get before freezing? The coldest water can get before freezing depends on various factors, including impurities and pressure. Under typical conditions, pure water can remain a liquid as cold as -40 degrees Fahrenheit (-40 degrees Celsius) before freezing.

Why don’t oceans freeze as easily as freshwater lakes? Oceans are less likely to freeze than freshwater lakes because they have a lower freezing point due to their higher salt content. The dissolved salts lower the freezing point of ocean water, making it less likely to freeze at the typical temperatures found on Earth’s surface.

Does higher pressure mean lower freezing point? Yes, higher pressure generally means a lower freezing point for most substances, including water. As pressure increases, the freezing point decreases, and as pressure decreases, the freezing point increases.

How much does pressure affect freezing point? Pressure can have a significant effect on the freezing point of a substance. For water, as an example, increasing pressure by 1 atmosphere (approximately 101.3 kPa) typically lowers the freezing point by about 0.0072 degrees Celsius (0.013 degrees Fahrenheit).

Can frozen water get colder than 32 degrees? Frozen water itself (ice) cannot get colder than its own freezing point, which is 0 degrees Celsius (32 degrees Fahrenheit). However, the surrounding environment can be colder than ice itself. Ice will absorb heat from its surroundings, potentially causing the surroundings to become even colder.

Can water freeze above 32? No, under normal atmospheric pressure, water cannot freeze above 32 degrees Fahrenheit (0 degrees Celsius). Its freezing point is at or below this temperature, depending on the pressure.