Page 13 - Finalll Science BB Prep2 t1 2025_Neat

• This table shows some values of the boiling point of pure water at

different altitudes above sea level.

Elevation about sea level Atmospheric pressure Boiling point of pure water

0 m 1 atm 100 cº

1800 m 0.8 atm ………. cº

3000 m 0.69 atm 90 cº

4800 m 0.56 atm ……….. cº

Technological application:

Pressure cooker (Steam pot)

It cooks food in a shorter time to save fuel (energy).

Raising
Trapping Increasing boiling Saves
water the point of Reduces fuel
cooking
vapor water time 70% -
inside pressure more than 90%
100º C

First Term 22