Please Explain the meaning of these lines of chemistry
Answers
"It is the natural tendency of gases "
Natural tendency means that this happens by itself without any external stimuli/interaction.
"to flow from a higher pressure to a lower pressure zone."
Gases flow from places with high pressure to places of low pressure.
eg: Air in a balloon will tend to naturally escape from the balloon because the balloon is a high pressure zone and the air surrounding it is a comparatively low pressure zone.
" The intermolecular force"
Intermolecular force has been underlined in your enquiry so I think you have emphasized this. Intermolecular forces are the forces between molecules ( in this case, of a gas ) which are either attractive between molecules or repulsive. Here, Intermolecular forces are taken as repulsive, which means that molecules of the gas are repelled from each other.
"is larger in the higher pressure zone "
A high pressure zone, by definition is an area where the gas molecules are closer to each other. This would mean that the gas molecules would be repelled from each other as they are being forcibly squeezed together in a tight space, so the intermolecular forces are higher here.
"than in the lower pressure zone"
In the low pressure zone, molecules of gas are far away from each other, which means that the intermolecular repulsive forces would be very low compared to the high pressure zone, where the molecules are closer together, as in the low pressure zone, molecules are free to move in any direction and are not confined.
" and so the flow..."
The sentence is incomplete, but I believe this continues on to imply that, hence, the flow of the gas molecules will be from the high pressure zone to the low pressure zone due to the intermolecular forces acting on the gas molecules.
Hope this helps !
:)