Thermal energy at the molecular level is a reflection of how fast their random motion and how "agitated" they might appear were you able to view them. In more detailed terms their nett thermal energy U is the sum of U(rot), how fast they are spinning, + U(trans) - how fast they are moving in one particular direction, and + U(vib) - where the atoms in the molecule would seem to bounce back and forth in their bonds with respect to the position of other atoms. Increasing the thermal energy would increase the speed of these motions.
How does an increase in the total energy of the particles in a substance affect the thermal energy of the substance.
The faster the motion of molecules in the type of matter the warmer the substance is.
increases in thermal energy
For the most part, the movement of particles is the thermal energy of a substance. However, some of the thermal energy has other forms. This is especially noticeable at very low temperatures.
The size of the particles of solute do not affect the solubility of a substance, which is determined by its chemical composition, but it does affect how quickly it dissolves. The smaller the particles of the solute, the faster it will dissolve.
scientific method
TRUE
Adding heat will do one of the following, or both: * The temperature of the substance increases. The individual particles move faster; their kinetic energy increases. * The substance changes its state (for example, when ice melts, it changes from solid to liquid). The potential energy of the particles increases.
How does an increase in the total energy of the particles in a substance affect the thermal energy of the substance.
inc temp, increases the ave. KE of the particles.
For the most part, the movement of particles is the thermal energy of a substance. However, some of the thermal energy has other forms. This is especially noticeable at very low temperatures.
The size of the particles of solute do not affect the solubility of a substance, which is determined by its chemical composition, but it does affect how quickly it dissolves. The smaller the particles of the solute, the faster it will dissolve.
scientific method
yes
TRUE
Adding heat will do one of the following, or both: * The temperature of the substance increases. The individual particles move faster; their kinetic energy increases. * The substance changes its state (for example, when ice melts, it changes from solid to liquid). The potential energy of the particles increases.
Temperature is a measure of particle movement. An increase of temperature, in a sense is an increase of the average movement of the particles within the substance, to include vibrations, spins, and lateral movement.
me
The energy will increase and the particles will speed up.
Yes; the dissolution rate is increased when a substance is as small particles.