Question

The degree of freedom of triatomic gas is :

• A. 8
• B. 6
• C. 4
• D. 2

Answer 1

Answer: (B)

The degrees of freedom of the system is given by the formula
$f=3N-K$
Where,
$f=$ degrees of freedom
$N=$ Number of Particles in the system.
$K=$ Independent relation among the particles
For a tri atomic gas
$N=3$
$K=3$
$f=3\times 3-3$
$f=9-3$
$f=6$
Therefore, the degree of freedom of tri atomic gas is $6$ .