Physics

Problem

Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom. The gas is maintained at a temperature of

T

. The total internal energy

U

of a mole of this gas, and the value of

\gamma

are given respectively, by (a)

U = \frac{5}{2} RT

and

\gamma = \frac{6}{5}

(b)

U = 5RT

and

\gamma = \frac{7}{5}

(c)

U = \frac{5}{2} RT

and

\gamma = \frac{7}{5}

(d)

U = 5RT

and

\gamma = \frac{5}{5}

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