# Which of the following statements is true about an ideal gas?

(1) Molecules are moving randomly in all directions in a container

(2) Molecules of a gas collide with each and the velocities of the molecules

(3) Degrees of freedom of a gas depends on the shape of gaseous molecules

$\begin{array}{1 1} (A)(1) \;and\;(2) \;only \\(B)(2) \;and\;(3) \;only \\ (C)All \;three \\ (D)(1) \;and\;(3) \;only \end{array}$

Kinetic theory of gases states all of the above facts. The degrees of freedom depend on the linearity, non-linearity and shape of the gaseous molecule.