What Temperature Does Water Boil at and Has it Changed?

In summary, the conversation discussed the incorrect teaching of the boiling point of water at 215 F instead of the standard 212 F. It was suggested that this may be due to living in a place with a different elevation or for easier calculation. The conversation also briefly touched on the topic of pi and its approximation of 22/7. This was criticized and a more accurate approximation of 355/113 was suggested. The summary concludes with the acknowledgement that the discussion has veered off topic and is now considered finished.
  • #1
93truck
1
0
I always thought it was at 212 F . My 7 year old teacher is teaching them 215 F. When did this change. I am sorry in advanced if this is in the wrong section.
 
Physics news on Phys.org
  • #2
It is 100 C or 212 F at standard (1 atm.) pressure. Your teacher is incorrect.
 
  • #3
It must be just to be a number easier to work with or something. It's not that grave IMO
 
  • #4
mathman said:
Your teacher is incorrect.
Perhaps she lives in Holland? Or the Dead Sea? Or any of http://en.wikipedia.org/wiki/List_of_places_on_land_with_elevations_below_sea_level" ?
 
Last edited by a moderator:
  • #5
devoured_elysium said:
It must be just to be a number easier to work with or something. It's not that grave IMO
Yeah, and pi=3...
 
  • #6
Your teacher is seven years old >.<"...?
 
  • #7
O and, pi doesn't equal 3, but until your 14, apparently its 22/7 >.<"
 
  • #8
Gib Z said:
O and, pi doesn't equal 3, but until your 14, apparently its 22/7 >.<"

Actually, 22/7 is quite a good estimate; it is accurate to within 4 parts in 1000.
 
  • #9
thats a nicer way of saying 2 decimal places. The truth is that it is an infinite number of decimal places off and students think its exactly 22/7.

at least try 355/113
 
  • #10
Since this thread has degenerated into some absurd discussion that has nothing to do with the OP, I will assume that the discussion on the original topic is done.

Zz.
 

1. What is the boiling point of water?

The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit at sea level. However, this can vary depending on altitude and atmospheric pressure.

2. Why does water boil at a certain temperature?

Water boils at a certain temperature because at that point, the vapor pressure of the water equals the atmospheric pressure. This causes the liquid to change into a gas, creating bubbles and the appearance of boiling.

3. Can water boil at a temperature lower than 100 degrees Celsius?

Yes, water can boil at a temperature lower than 100 degrees Celsius if the atmospheric pressure is lower. This is why water boils at lower temperatures at higher altitudes.

4. Does the type of water affect its boiling point?

Yes, the type of water can affect its boiling point. For example, saltwater has a higher boiling point than pure water because the salt particles disrupt the water's ability to form vapor bubbles.

5. What happens to the temperature of water as it boils?

The temperature of water remains constant at its boiling point as it boils. Any additional heat added will only cause the water to evaporate faster, but the temperature will not increase beyond its boiling point.

Similar threads

Replies
18
Views
2K
  • Introductory Physics Homework Help
Replies
23
Views
1K
  • Other Physics Topics
Replies
15
Views
2K
Replies
20
Views
32K
Replies
5
Views
2K
Replies
3
Views
1K
Replies
6
Views
1K
  • Thermodynamics
Replies
14
Views
635
Replies
1
Views
1K
Back
Top