Question

For any system what is the minimum degree of freedom?

• A. $0$
• B. $1$
• C. $2$
• D. $3$

Answer 1

Answer: (A)

$0$

Gibbs Phase Rule

$F=C-P+2$

At triple point of water, (i.e. water and steam in equilibrium)

No. of phase=3

No. of component=1

So

$F=1-3+2=0$