The kinetic-molecular theory of gases can be stated as four postulates: A gas consists of molecules in constant random motion . Gas molecules influence each other only by collision; they exert no other forces on each other. All collisions between gas molecules are perfectly elastic; all kinetic energy is conserved.
Which of the following is a postulate of the kinetic-molecular theory of gases quizlet?
What is a postulate of the kinetic molecular theory of gases? The particles that compose a gas are so small compared to the distances between them that the volume of the individual particles can be assumed to be negligible.
Which of the following is a postulate of the kinetic molecular theory of gases?
The five main postulates of the KMT are as follows: (1) the particles in a gas are in constant, random motion , (2) the combined volume of the particles is negligible, (3) the particles exert no forces on one another, (4) any collisions between the particles are completely elastic, and (5) the average kinetic energy of ...
Which of the following postulates of the kinetic molecular theory for gases can explain why gases exhibit pressure?
An increase in the number of gas particles in the container increases the frequency of collisions with the walls and therefore the pressure of the gas. The last postulate of the kinetic molecular theory states that the average kinetic energy of a gas particle depends only on the temperature of the gas.
What are the 5 parts of the kinetic molecular theory?
The five main postulates of the KMT are as follows: (1) the particles in a gas are in constant, random motion, (2) the combined volume of the particles is negligible, (3) the particles exert no forces on one another, (4) any collisions between the particles are completely elastic , and (5) the average kinetic energy of ...
What are the main assumptions of kinetic molecular theory?
The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size ; (2) the molecules undergo perfectly elastic collisions (no energy loss) with each other and with the ...
What are the basic postulates of kinetic-molecular theory quizlet?
- Gases are composed of infinitely small particles.
- The volume of a gas is composed of the space between the particles.
- Particles are in a constant random motion.
- Particles do not gain or lose kinetic energy during collision.
- Average kinetic energy of the particles is proportioned to temperature.
Which statement describes a limitation of the kinetic-molecular theory of a gas?
Terms in this set (12) Which statement describes a limitation of the kinetic-molecular theory for a gas? The theory assumes that particles do not experience intermolecular forces. The theory states that pressure is inversely proportional to volume.
Which best defines the kinetic-molecular theory?
Which statement best describes the collisions of gas particles according to the kinetic-molecular theory? As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with no gain or loss of energy . ... NOT Increasing the temperature of a gas increases the pressure.
Which property of gas is explained by the kinetic molecular theory?
Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions . Kinetic Molecular Theory can be used to explain both Charles’ and Boyle’s Laws. The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only.
What is the kinetic theory of matter and temperature?
The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving . All particles have energy, but the energy varies depending on the temperature the sample of matter is in. ... The temperature of a substance is a measure of the average kinetic energy of the particles.
What are the basic assumption of kinetic theory of gases?
The kinetic-molecular theory of gases assumes that ideal gas molecules (1) are constantly moving ; (2) have negligible volume; (3) have negligible intermolecular forces; (4) undergo perfectly elastic collisions; and (5) have an average kinetic energy proportional to the ideal gas’s absolute temperature.
What are three parts of the kinetic theory?
- Part 1 kinetic theory. All matter is made up of tiny particles.
- Part 2 kinetic theory. These particles are always in motion.
- Part 3 kinetic theory. Particles with more mass move more slowly then particles with less mass.
What are the three main parts of the kinetic molecular theory?
The kinetic-molecular theory of gases assumes that ideal gas molecules (1) are constantly moving; (2) have negligible volume; (3) have negligible intermolecular forces; (4) undergo perfectly elastic collisions ; and (5) have an average kinetic energy proportional to the ideal gas’s absolute temperature.
What does the kinetic molecular theory explain at least 3 things?
Kinetic theory explains macroscopic properties of gases , such as pressure, temperature, viscosity, thermal conductivity, and volume, by considering their molecular composition and motion. ... individual gas particles collide with the walls of the container thus producing a force.
What are the two false assumptions of the kinetic molecular theory?
Vander Waal pointed out that following two assumptions in kinetic theory are faulty: (i) The volume occupied by the gas molecule is negligible in comparison to the total volume of the gas . This assumption is nearly valid if the pressure is low. (ii) The molecules do not exert any force of attraction upon one another.
