Australian Politics Forum - How many feet above sea level….

Sophia

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Re: How many feet above sea level….
Reply #15 - Jun 4^th, 2025 at 7:29pm

Bobby. wrote on Jun 4^th, 2025 at 4:57pm:

Sophia wrote on Jun 4^th, 2025 at 4:51pm:

Bobby. wrote on Jun 4^th, 2025 at 4:16pm:

Sophia wrote on Mar 31^st, 2025 at 2:30pm:

Water boils faster at sea level (or lower altitudes) than at higher altitudes, as the boiling point is lower at higher altitudes due to reduced atmospheric pressure.
Here's a more detailed explanation:
Boiling Point and Altitude:
The boiling point of water is the temperature at which it transitions from a liquid to a gas (steam). At sea level, water boils at 100°C (212°F). However, as altitude increases, the atmospheric pressure decreases, and therefore, the boiling point of water also decreases.
Boiling Point at Higher Altitudes:
At 5,000 feet above sea level, water boils at around 203°F (95°C), and at 10,000 feet, it boils at approximately 194°F (90°C).
Why Boiling is Quicker at Sea Level:
Because water boils at a lower temperature at higher altitudes, it takes less energy (heat) to reach that lower boiling point, meaning it boils more quickly. At sea level, water needs to reach a higher temperature (100°C), requiring more energy and thus a longer time to boil.
Cooking at High Altitude:
While water boils faster at sea level, it's important to note that food takes longer to cook at higher altitudes because the lower boiling temperature means the food doesn't reach the required cooking temperature as quickly.

You are really mixed up.

Water boils slower at sea level - it takes longer to boil.

How so Bobby?

Explain this then.

That meme is wrong.
It takes less energy to make the water boil at high altitude -
so it boils much faster than at sea level.

We now talk about energy required to boil water?
It uses less energy to boil water at high altitude but it takes longer.
At lower altitude there’s more energy so it boils quicker.

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Bobby. Gold Member Offline Australian Politics Posts: 111533 Melbourne Gender:	Re: How many feet above sea level…. Reply #16 - Jun 4^th, 2025 at 7:33pm Sophia wrote on Jun 4^th, 2025 at 7:29pm: We now talk about energy required to boil water? It uses less energy to boil water at high altitude but it takes longer. At lower altitude there’s more energy so it boils quicker. Dear Sophia, you are so mixed up. Trust me - I'm a scientist.
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Baronvonrort

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Re: How many feet above sea level….
Reply #17 - Jun 4^th, 2025 at 7:34pm

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

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Bobby.

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Re: How many feet above sea level….
Reply #18 - Jun 4^th, 2025 at 7:39pm

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

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Baronvonrort

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Re: How many feet above sea level….
Reply #19 - Jun 4^th, 2025 at 7:48pm

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

You still need energy for vacum pump.

Are you boiling water to make it hot or just to evaporate it?

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Bobby.

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Re: How many feet above sea level….
Reply #20 - Jun 4^th, 2025 at 7:50pm

Baronvonrort wrote on Jun 4^th, 2025 at 7:48pm:

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

You still need energy for vacum pump

Yes - but that's all - it just simulates a very high altitude.

That's the way they use less energy to desalinate water by distillation.
They take the vacuum down to a low pressure and
then only a little bit of heat and energy will boil the water.

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Baronvonrort

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Re: How many feet above sea level….
Reply #21 - Jun 4^th, 2025 at 8:02pm

Bobby. wrote on Jun 4^th, 2025 at 7:50pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:48pm:

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

You still need energy for vacum pump

Yes - but that's all - it just simulates a very high altitude.

That's the way they use less energy to desalinate water by distillation.
They take the vacuum down to a low pressure and
then only a little bit of heat and energy will boil the water.

They don't use vacum to desalinate water.

This is the smallest electric desalinator
https://www.katadyngroup.com/us/en/8013438-Katadyn-PowerSurvivor-40E~p6702

This is the smallest hand held desalinator for life rafts.
https://www.katadyngroup.com/us/en/Katadyn-Survivor-06-LS-RES~p30344

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Bobby.

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Re: How many feet above sea level….
Reply #22 - Jun 4^th, 2025 at 8:09pm

https://www.researchgate.net/publication/286714630_The_Natural_Vacuum_Desalinati...

Seawater desalination technology is an important way to solve the freshwater shortage problem. Natural vacuum desalination (NVD) technology generates very low pressure environment in the headspace of 10 meters high water column. The weight of the water column is balanced by atmospheric pressure, and low-temperature desalination proceeds in the headspace. NVD technology drives the desalination process without any mechanical pumping, and requires relatively inferior quality of device material and simple structures. In this paper, the basic theory of NVD technology is introduced and physical model is described. Research progresses of different types of NVD technologies are summarized, and the method of increasing freshwater production is pointed out. This paper also illustrates the outlook on future development of NVD technology.

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Sophia

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Re: How many feet above sea level….
Reply #23 - Jun 4^th, 2025 at 8:25pm

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

Well…professorie.. since I’m living higher up in the mountains, my energy bill should be cheaper since everything operates at lower rates for the same outcome as anyone down in the boondocks.

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Bobby.

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Re: How many feet above sea level….
Reply #24 - Jun 4^th, 2025 at 8:32pm

Sophia wrote on Jun 4^th, 2025 at 8:25pm:

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

Well…professorie.. since I’m living higher up in the mountains, my energy bill should be cheaper since everything operates at lower rates for the same outcome as anyone down in the boondocks.

No - it's colder at high altitude - your heating bill would be higher.

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Sophia

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Re: How many feet above sea level….
Reply #25 - Jun 4^th, 2025 at 8:42pm

Bobby. wrote on Jun 4^th, 2025 at 8:32pm:

Sophia wrote on Jun 4^th, 2025 at 8:25pm:

Bobby. wrote on Jun 4^th, 2025 at 7:39pm:

Baronvonrort wrote on Jun 4^th, 2025 at 7:34pm:

AI response-

No, boiling water at higher altitudes actually requires less energy, not more. At higher altitudes, the lower atmospheric pressure means water will boil at a lower temperature, and therefore less heat is needed to reach that boiling point. While the boiling point is lower, the amount of time it takes to heat the water to that lower boiling point is not necessarily increased.

The AI is wrong.

If you put a glass of water inside a tank and use a vacuum pump to remove all the air -
the water will boil at room temperature.

No energy required - and it will boil instantly.

Trust me - I'm a scientist. Grin

Well…professorie.. since I’m living higher up in the mountains, my energy bill should be cheaper since everything operates at lower rates for the same outcome as anyone down in the boondocks.

No - it's colder at high altitude - your heating bill would be higher.

Not with a fireplace! And free wood galore here

I watched a show last year about train travel through the Swiss alps… they stopped at a restaurant up high… with amazing views.
Then in the kitchen they were saying it took longer to boil the water for pasta to cook in.
Because of the high altitude.
And I found this article.

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856A4D94-F7E5-43BD-AC25-0CCB4909E04A.jpeg (109 KB | 3 )

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