GCT said:
GCT said:
The boiling point of a substance is the temperature at which it changes from a liquid to a gas. It is also the temperature at which the vapor pressure of the liquid equals the atmospheric pressure.
The higher the atmospheric pressure, the higher the boiling point of a substance. This is because the increased pressure makes it harder for the liquid molecules to escape into the gas phase, requiring a higher temperature for the vapor pressure to overcome the atmospheric pressure.
Yes, the boiling point of a substance can change depending on factors such as atmospheric pressure, altitude, and the composition of the substance. For example, adding salt to water can increase its boiling point.
The boiling point of a substance is determined through experiments in a laboratory. The most common method is to heat the substance in a closed container and measure the temperature at which the vapor pressure equals the atmospheric pressure.
The boiling point is important in many everyday activities such as cooking, sterilization, and distillation. It is also used in industries for processes such as refining crude oil and producing pharmaceuticals. Additionally, the boiling point can be used to identify and distinguish between different substances.
