. The decomposition of carbon disulfide, CS2(ℓ), into its elements is represented by the equation
shown below. Sketch the potential energy diagram corresponding to the formation equation
for carbon disulfide. CS2(ℓ)  C(s) + 2 S(s) + 89.0 kJ

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.