1 At constant temperature not pressure a sample exists in tw

1. At constant temperature (not pressure), a sample exists in two phases with 1 degree of freedom. How many components are there?

Solution

A pure element or compound is called a component. If the sample exists intwo phases with 1 degree of freedom, there is only one component. Mathematically is shown below:

F [degrees of freedom] = C [component] - P [phases] + 2

Then, the number of components is,

C = F + P -2 = 1 + 2 - 2 = 1