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Not quite enough information here to give an accurate answer. Most things freeze at a higher temperature under higher pressure. But if you want to know at a given pressure when hydrogen will freeze then the temperature needs to be given as a constant.
In other words hydrogen will freeze at different pressures depending on what temperature it is stored at. One method for freezing hydrogen gas is to drop it into frozen helium and raise the pressure. The heavier medium of helium separates downward as the freezing occurs. This provides a layer of frozen hydrogen. If colder cooling agents were used then less pressure would be needed.
That is why I said you didn't provide enough information.
What else can I help you with?
When would less helium be needed to fill a balloon?
The lower the atmospheric pressure, the less helium is needed.
What is the freeze depth in Denver CO?
Around 28 degrees F. As the elevation increases the atmospheric pressure decreases thus changing the pressure to temperature ratio needed to freeze water. At standard elevation it is 32 deg F. In Denver water boils at 203 deg F, 9 degrees lower than at standard altitude.
How does the boiling point different from lowland and highland?
The boiling point of a substance is lower at higher altitudes due to lower atmospheric pressure, which reduces the pressure exerted on the liquid. In contrast, at low altitudes with higher atmospheric pressure, the boiling point is higher as more pressure is needed to overcome atmospheric pressure.
What is the relationship of boiling point with atmospheric pressure?
The boiling point of a substance decreases as the atmospheric pressure decreases. This is because lower atmospheric pressure reduces the pressure pushing down on the liquid, making it easier for the liquid to vaporize. Conversely, higher atmospheric pressure increases the boiling point of a substance as more pressure is needed to overcome the atmospheric pressure and cause the liquid to vaporize.
Which of the following places has the highest atmospheric pressure?
The lowest level of the deepest mine (In South Africa), will have the highest atmospheric pressure. But because of the forced ventilation and cooling systems needed, the air pressure at the lowest levels of the mine will not represent natural atmospheric pressures. [unless the ventilation systems fail!}
Why high pressure needed in autoclave?
To sterilise effectively the water in the autoclave needs to reach a temperature of 120°C. Since water at atmospheric pressure boils at 100°C, a higher pressure is needed to reach that temperature.
What type of pressure is involved in the filling of a liquid in a syringe?
In the filling of a liquid in a syringe, atmospheric pressure plays a role in pushing the liquid into the syringe barrel when the plunger is pulled back. This pressure difference helps create the suction needed to draw the liquid into the syringe.
How do you do calibrate differential pressure transmitter?
Differential presseure sensors invariably have two presure sesnors. Subject both the sesnors to atmospheric pressure and adjust if needed. Keep one sensor 1 under known pressure and another sesnor 2 under atmospheric pressure and adjust if needed. Repeat step 2 for the other sensor 2 and adjust if rquired.
How do you do calibration for differential pressure transmitter?
Differential presseure sensors invariably have two presure sesnors. Subject both the sesnors to atmospheric pressure and adjust if needed. Keep one sensor 1 under known pressure and another sesnor 2 under atmospheric pressure and adjust if needed. Repeat step 2 for the other sensor 2 and adjust if rquired.
Why do airplanes need to be pressurized?
Airplanes need to be pressurized because the atmospheric pressure, at such a high altitude, acts upon your body. Your body is trying to adjust to maintain equal pressure, causing your ears pop. Because your body cannot maintain equal pressure by itself, the airplane makes up for the rest of the pressure that is needed to equalize the atmospheric pressure.
How do you concentrate hydrogen peroxide?
i just freeze a 3% solution for 7 hours. whatever liquid is not frozen, that is 10-30% h2o2. defrost the ice and repeat process as much as needed. you'll have about 20-40 ml of 10-30% h2o2 when done. beware it takes several days. this stuff is corrosive too, have great care
How does atmospheric pressure affect the boiling point?
Atmospheric pressure is the weight of the air column above a particular point on the earth's surface. This weight pushes down on any object beneath it. In the case of a liquid that is being heated to the boiling point, it prevents vapor from pushing through the surface of the liquid and out to the surrounding air. Thus, the lower the atmospheric pressure above a liquid being heated, the less weight pushing against the vapor that is forming. So the lower this pressure is, the more easily the vapor escapes, meaning that there is less energy required to boil the liquid. This explains why food preparation instructions are different in locations of higher elevation: the amount of energy required to boil water at higher elevations is lower, meaning that less energy is going into the food to cook it.
