The temperature of a sample of liquid water changes from 50°c to 30°c. which statement best explains the change that must happen at the molecular level?
the molecules move more quickly and their average kinetic energy increases.
the molecules move more slowly and their average kinetic energy decreases.
the molecules move more quickly and their average kinetic energy decreases.
the molecules move more slowly and their average kinetic energy increases.

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.