Which of the following statements is true based on the propositions of the kinetic molecular theory?
and the choices?
Which are true statements according to the kinetic molecular theory of matter?
Select all that apply.
The mass of a substance determines its phase.
Matter is made up of particles.
The mobility of particles is dependent on their energy.
Only gas particles are constantly in motion.
To determine which of the following statements is true based on the propositions of the kinetic molecular theory, I would need to know the statements you are referring to. Kindly provide the statements so that I can assist you step-by-step in evaluating their validity.
To determine which of the following statements is true based on the propositions of the kinetic molecular theory, we need to first understand the basics of the theory. The kinetic molecular theory explains the behavior of gases and is based on several postulates:
1. Gases are made up of particles (atoms or molecules) that are in constant random motion.
2. The volume of gas particles is negligibly small compared to the overall volume of the gas.
3. Gas particles do not exert attractive or repulsive forces on each other.
4. The average kinetic energy of gas particles is directly proportional to the temperature of the gas.
Now, we can evaluate the statements based on these principles:
1. "Gas particles move in straight lines until they collide with other particles." - This statement is true according to the kinetic molecular theory. Particles in a gas move in straight lines until they collide with other particles or the container walls.
2. "The volume of gas particles is negligible compared to the volume of the gas." - This statement is also true based on the kinetic molecular theory. Gas particles are considered to have negligible volume compared to the overall volume of the gas.
3. "Gas particles attract each other and form bonds." - This statement is false according to the kinetic molecular theory. Gas particles do not exert attractive forces on each other; they only interact through collisions.
4. "The average kinetic energy of gas particles decreases with increasing temperature." - This statement is false according to the kinetic molecular theory. The average kinetic energy of gas particles is directly proportional to the temperature of the gas. In other words, increasing the temperature increases the average kinetic energy of the particles.
In summary, based on the principles of the kinetic molecular theory, statements 1 and 2 are true, while statements 3 and 4 are false.