A rigid, sealed container holds an equimolar mixture of ect{CH}_4 ect{(g)}\) (molar mass \(16.04\text{ g/mol}\)) and \(\text{SO}_2\text{(g)}\) (molar mass \(64.06\text{ g/mol}\)) at \(300\text{ K}\). Which of the following statements correctly compares the average kinetic energy of the \(\text{CH}_4\text{(g)}\) molecules to that of the \(\text{SO}_2\text{(g)}\) molecules, and provides the correct justification?