Which type of equilibrium exists in a sealed flask containing Br2() and Br2(g) at 298 K and 1.0 atm? A) static phase equilibrium B) static solution equilibrium C) dynamic phase equilibrium D) dynamic solution equilibrium

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.