Question

Select all of the postulates of the Kinetic Molecular Theory (KMT).

1. The average kinetic energy of the gas particles is assumed to be directly proportional to the Kelvin temperature of the gas.

2. The average kinetic energy of the gas particles is assumed to be directly proportional to the Celsius temperature of the gas.

3. The particles exert no forces on each other.

4. Particles of the same type clump together in the container.

5. The particles are in constant motion.

6. The particles are so small compared to the size of the container that the volume of the individual particles can be assumed to be zero.

Answer 1

The correct postulates of the Kinetic Molecular Theory include particles having zero volume, no forces exerted between particles, constant particle motion, and average kinetic energy being proportional to the Kelvin temperature of the gas.

Step-by-step explanation:

Based on the Kinetic Molecular Theory (KMT) of gases, the following postulates are correct:

• The average kinetic energy of the gas particles is assumed to be directly proportional to the Kelvin temperature of the gas.
• The particles exert no forces on each other.
• The particles are in constant motion.
• The particles are so small compared to the size of the container that the volume of the individual particles can be assumed to be zero.

The incorrect postulates in the list provided are:

• The average kinetic energy of the gas particles is assumed to be directly proportional to the Celsius temperature of the gas.
• Particles of the same type clump together in the container.

In contrast to what postulate number 2 states, the average kinetic energy of gas particles is directly proportional to the Kelvin temperature, not the Celsius temperature of the gas, which is important to remember when studying ideal gas behavior.

Moreover, postulate 4 is false because particles do not clump together; according to the KMT there are no attractive or repulsive forces between particles.