the three states of matter are modeled in the heating curve seen here. identify all of the changes that must…

the three states of matter are modeled in the heating curve seen here. identify all of the changes that must take place for a substance to change state, from a solid to a gas.\na pressure increases.\nb temperature increases.\nc particles spread apart.\nd kinetic energy decreases.\ne particle motion increases.

the three states of matter are modeled in the heating curve seen here. identify all of the changes that must take place for a substance to change state, from a solid to a gas.\na pressure increases.\nb temperature increases.\nc particles spread apart.\nd kinetic energy decreases.\ne particle motion increases.

Answer

Brief Explanations:

  • Option B: As energy is input (heating), the temperature increases in the non - plateau regions of the heating curve (when moving from solid to liquid and liquid to gas, except during phase changes where temperature is constant).

  • Option C: In solids, particles are closely packed. As the substance changes to a gas, particles spread apart.

  • Option E: With an increase in temperature (except during phase changes where energy is used for phase transition), the kinetic energy of particles increases, and thus particle motion increases.

  • Option A: Pressure is not a factor shown in this heating curve model for changing from solid to gas. The heating curve focuses on energy input and temperature changes.

  • Option D: Kinetic energy increases (not decreases) as the substance is heated (except during phase change plateaus where energy is used for breaking intermolecular forces, but overall trend from solid to gas with energy input is an increase in kinetic energy when temperature is rising).

Answer:

B. Temperature increases, C. Particles spread apart, E. Particle motion increases.