Determine the molar specific heat of ammonia at a temperature of 300 K. Assume the ideal-gas formula and use the following data: the principal moments of inertia: I1=4.44×10−40 g cm2, I2=I3=2.816×10−40 g cm2; wave numbers of the various modes of vibration: νˉ1=νˉ2=3336 cm−1, νˉ3=νˉ4=950 cm−1; νˉ5=3414 cm−1 and νˉ6=1627 cm−1.