Question

The degree of freedom is zero for a single-component condensed system. What is the maximum number of phases that can co-exist?

(a) 0

(b) 1

(c) 2

(d) 3

I had been asked this question in class test.

The query is from Degrees of Freedom in section Humidity Charts and Analysis of the Degrees of Freedom in Steady-State Processes of Chemical Process Calculation

Answer 1

The correct option is (c) 2

For explanation: Gibbs phase, P+F=C+2.