# What is Clapeyron equation?

## What is Clapeyron equation?

: an equation relating to change of phase in a pure substance (as vaporization of a liquid) that gives the rate of change with temperature of the pressure at equilibrium between the phases in terms of the heat of transition and the volumes of the phases before and after the transition — compare clausius-clapeyron …

## Which is Clapeyron and Clausius equation?

The Clapeyron-Clausius equation is a differential equation giving the interdependence of the pressure and temperature along the phase equilibrium curve of a pure substance. This equation was suggested by B. Clapeyron in 1834 and improved by R. Clausius in 1850.

## What is the Clausius-Clapeyron equation and why is it important?

The Clausius–Clapeyron equation links the slope of the phase boundary with the change in volume of the substance. It provides a way of determining the latent heat by measuring the slope of the saturation curve on a P–T diagram and also the specific volume at the given temperature.

## When can the Clausius-Clapeyron equation be used?

The equation describes the phase transition between two phases of matter that have the same composition. Thus, the Clausius-Clapeyron equation can be used to estimate vapor pressure as a function of temperature or to find the heat of the phase transition from the vapor pressures at two temperatures.

## Who created the Clausius-Clapeyron equation?

Rudolf Clausius
atmospheric water vapour physical relationship known as the Clausius-Clapeyron equation, named for 19th-century German physicist Rudolf Clausius and 19th-century French engineer Émile Clapeyron.

## Which one from the following is known as Clapeyron Mendeleev equation of state?

A simple example of the equation of state for gases is the Clapeyron-Mendeleev equation pν = RT, where R is the gas constant and v is the volume of one mole.

## What are the limitations of Clausius-Clapeyron equation?

You cannot break even (i.e., one cannot return to the same energy state, because entropy, or disorder, always increases). You cannot get out of the game (i.e., absolute zero is unattainable because no perfectly pure substance exists).

## Which equation is known as equation of state?

Soave replaced the 1/√T term of the Redlich-Kwong equation with a function α(T,ω) involving the temperature and the acentric factor (the resulting equation is also known as the Soave-Redlich-Kwong equation of state; SRK EOS).