Which statement best explains the change that occurs when gas particles move more slowly?
a. the temperature increases because the average kinetic energy decreases.
b. the temperature increases because the average kinetic energy increases.
c. the temperature decreases because the average kinetic energy decreases.
d. the temperature decreases because the average kinetic energy increases.

C. The temperature decreases because the average kinetic energy decreases.

Explanation:

Kinetic energy is the energy possessed by an object by virtue of its motion.

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is given by the equation:

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and thus molecules will move faster.

When temperature is decreased, kinetic energy decreases, and the molecules swill move slowly.

Option (C) is the correct answer.

Explanation:

Relation between kinetic energy and temperature is as follows.

As, kinetic energy is directly proportional to temperature. So, when there will be increase in temperature then there will also occur increase in kinetic energy of the particles of a substance.

Therefore, when gas particles move more slowly then it means kinetic energy of gas particles is very low. It also implies that temperature is low.

Thus, we can conclude that the statement temperature decreases because the average kinetic energy decreases best explains the change that occurs when gas particles move more slowly.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).