# How do you find the boiling point of water at different altitudes?

Contents

Boiling. At sea level, water boils at 100 °C (212 °F). For every 152.4-metre (500 ft) increase in elevation, water’s boiling point is lowered by approximately 0.5 °C. At 2,438.4 metres (8,000 ft) in elevation, water boils at just 92 °C (198 °F).

## How do you find boiling point at different altitudes?

Boiling-Point Elevation Example

1. Glucose is our solute and water is the solvent.
2. Kb for water is 0.51 degrees Celsius kg/mol.
3. The molar mass of glucose is 180 g/mol.
4. The boiling point of water is 100 degrees Celsius.
5. The equation for boiling-point elevation is delta T = mKb.

## How does boiling point of water change with altitude?

As atmospheric pressure decreases, water boils at lower temperatures. At sea level, water boils at 212 °F. With each 500-feet increase in elevation, the boiling point of water is lowered by just under 1 °F. At 7,500 feet, for example, water boils at about 198 °F.

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## How do you find the boiling point of water at different pressures?

If the boiling point values for a specified substance at a specified BP temperature and pressure are given, one can determine the Boiling Point at different vapor pressure values using the Clausis-Clapeyron Equation. The Clausis-Clapeyron Equation is derived from VP2=VP1e−ΔHvRT at two different temperatures.

## What is the boiling point at my altitude?

Elevation above sea level and the boiling point of water.

Altitude – compared to Sea Level Boiling Point
(ft) (m) (oF)
212.0
250 76 211.5
500 152 211.0

## What is the formula to find boiling point?

The Formula for Boiling Point

It are often calculated as: Kb = RTb2M/ΔHv, R is that the universal gas constant. Tb is that the boiling temperature of the pure solvent [in K] M is that the molar mass of the solvent.

## How is the boiling point of water affected?

Atmospheric pressure influences the boiling point of water. When atmospheric pressure increases, the boiling point becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower. Pressure on the surface of water tends to keep the water molecules contained.

## Is the boiling point at Durban and Johannesburg the same?

In Johannesburg, at 1750 metres above sea level, water boils at about 94.5°C. In Durban, at sea level, it boils at 100°C.

## When bringing water to a boil in the mountains the time needed to reach the boiling point is?

When bringing water to a boil in the mountains the time needed to reach the boiling point is? Most health organizations, including the Center for Disease Control, recommend that you boil water vigorously for 1 minute up to elevations of 2,000 meters (6,562 feet) and 3 minutes at elevations higher than that.

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## What is the boiling point of water at 12 psi?

At standard pressure the boiling point of water is 100 °C (212 °F).

Theory.

Gauge Pressure (rel. to sea level) Temperature Appr. Cooking time (compared to boiling)
0.7 bar (10 psi) 116 °C (241 °F) 33%
0.8 bar (12 psi) 117 °C (243 °F) 31%
0.9 bar (13 psi) 119 °C (246 °F) 27%
1.0 bar (15 psi) 121 °C (250 °F) 23%

## What temperature does water boil at 15 psi?

Whereas water boils at around 212°F. at atmospheric pressure, if exposed to 15 psi (a common radiator pressure cap), the boiling point will now be 45°F. higher (3 psi times 15 psi cap). Under this pressure, water boils at 257°F.

## What is the boiling point of water at an elevation of 9000 ft?

Boiling Point of Water at Different Altitudes

Altitude ft. (meters) Boiling Point – Fahrenheit Boiling Point – Celsius
8000 ft. (2438 m.) 197 ºF 91.5 ºC
8500 ft. (2591 m.) 196 ºF 91 ºC
9000 ft. (2743 m.) 195 ºF 90.5 ºC
9500 ft. (2895 m.) 194 ºF 90 ºC