Question

Which statement is true?



Molecules in gases possess kinetic energy since they are in constant motion, while molecules in liquids and solids are not in constant motion and hence possess no kinetic energy.



Molecules in gases and liquids possess kinetic energy since they are in constant motion, while molecules in solids are not in constant motion and hence possess no kinetic energy.



Polyatomic molecules possess kinetic energy in the liquid and gaseous states since the atoms can move about in the molecule even if the molecule cannot move.



Since solids are rigid, their molecules do not

Answer 1

polyatomic molecules possess kinetic energy. liquids and solids do have some kinetic energy on the atomic level but gasses have more than liquids and liquids more than solids.