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Which of these is not a valid assumption of kinetic theory of matter?
A) The intermolecular force increases with decrease in intermolecular space between molecules.
B) The temperature of the matter is dependent on the average kinetic energy of the particles of the matter.
C) The size of the particles is so small that they are far apart from their size.

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Last updated date: 24th Jul 2024
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Answer
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Hint: As we know that the kinetic theory of gases or matter is a simple and significant model of the thermodynamic as well as kinetic behavior of gases in which many principal concepts of thermodynamics and kinetics were established. So here we have to point out the non-valid assumption of kinetic theory of matter.

Complete answer:
Let us discuss about kinetic theory of gases as follows:-
-Kinetic theory of matter: It is a significant model of the thermodynamic and kinetic behavior of gases in which many principal concepts of thermodynamics as well as kinetics were established. The few assumptions given by the kinetic theory of gases are as follows:-
The particles size is so small that they are far apart from their size which makes their actual volume negligible to the total volume of the container.
The collision between the particles and walls of the container is completely elastic in nature.
The particles of gas have a continuous as well as random motion that makes them possess kinetic energy.
There is zero force of interaction between the particles of the gas in the container.
The temperature of the matter is solely dependent on the average kinetic energy of the particles of gas inside the container.

From the above data we can conclude that A) the intermolecular force increases with decrease in intermolecular space between molecules is a non valid assumption.

Note:
-Remember that with the help of this theory, physical properties of any gas can be described generally in three terms of measurable macroscopic properties of volume, pressure and temperature of the container in which the gas is stored or present. So learn and understand the postulates prescribed by kinetic theory of gases.