Which of the following statement(s) is/are correct regarding ideal gas? — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

Rigid spheres of negligible volume (monoatomic ideal gas) cannot rotate or vibrate, only translational motion is possible (A correct). In polyatomic molecules, each atom's motion is independent and total motion is the vector sum (B correct). Kinetic and potential energies are independent quadratic terms contributing to total energy (C correct). Linear polyatomic molecules have 2 rotational DOF, but non-linear have 3 (D incorrect).