A triatomic molecule can have a linear configuration, as does CO2 (Figure a), or it can be nonlinear, like H20 (Figure b). Suppose the temperature of a gas of triatomic molecules is sufficiently low that vibrational motion is negligible.а) H H (a) What is the molar specific heat at constant volume, expressed as a multiple of the universal gas constant (R) if the molecules are linear? Eint/nT =(b) What is the molar specific heat at constant volume, expressed as a multiple of the universal gas constant (R) if the molecules are nonlinear? Eint/nT = At high temperatures, a triatomic molecule has two modes of vibration, and each contributes įr to the molar specific heat for its kinetic energy and another IR for its potential energy.(c) Identify the high-temperature molar specific heat at constant volume for a triatomic ideal gas of the linear molecules. (Use the following as necessary: R.) Eint/nT =(d) Identify the high-temperature molar specific heat at constant volume for a triatomic ideal gas of the nonlinear molecules. (Use the following as necessary: R.) Eint/nT =(e) Explain how specific heat data can be used to determine whether a triatomic molecule is linear or nonlinear.