True or false daltons atomic theory stated that matter is mostly empty space

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?