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

Contents

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 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 is the formula for boiling-point elevation?

The result is that in dilute ideal solutions, the extent of boiling-point elevation is directly proportional to the molal concentration (amount of substance per mass) of the solution according to the equation: ΔTb = Kb · b. where the boiling point elevation, is defined as Tb(solution) − Tb(puresolvent).

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

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 does boiling point change with pressure?

The pressure of gas above a liquid affects the boiling point. … The greater the pressure, the more energy required for liquids to boil, and the higher the boiling point.

## What is the boiling point of water at one atmospheric pressure?

Boiling occurs when the vapor pressure reaches or exceeds the surrounding pressure from the atmosphere or whatever else is in contact with the liquid. At standard atmospheric pressure (1 atmosphere = 0.101325 MPa), water boils at approximately 100 degrees Celsius.

## What is the boiling point of water 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 16 psi?

Straight water at atmospheric pressure boils at 212 degrees Fahrenheit. A mix of 50/50 coolant and water boils at around 220 degrees. That same mix at 16 pounds per square inch (psi) of pressure boils at approximately 250 degrees.

## What temp does water boil at 16 psi?

Normally water boils at 212°F. However, for every pound of pressure increase, the boiling point goes up 3°F. Typical radiator cap pressure is 12 to 16 psi. This raises the boiling point of the engine coolant to about 250°F to 260°F.