Question

give reasons for the following
a) A gas fills completely the vessel in which it is kept
b) A gas exerts pressure on the walls of container
c) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert ​

Answer 1

Answer:

a)Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel in which it is kept

a)Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel in which it is keptb)They have high kinetic energy and negligible force of attraction to move constantly moving with high speed in all directions. Due to this intense random motion of particles, the particles hit each other and hit the container walls with force. These collisions of the gas particles with the container walls exert pressure on the walls of the container.

a)Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel in which it is keptb)They have high kinetic energy and negligible force of attraction to move constantly moving with high speed in all directions. Due to this intense random motion of particles, the particles hit each other and hit the container walls with force. These collisions of the gas particles with the container walls exert pressure on the walls of the container.c)

• a)Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel in which it is keptb)They have high kinetic energy and negligible force of attraction to move constantly moving with high speed in all directions. Due to this intense random motion of particles, the particles hit each other and hit the container walls with force. These collisions of the gas particles with the container walls exert pressure on the walls of the container.c)Molecules in gases are loosely packed as compared to solid molecules, which are densely packed. So we can easily break the force of attraction when we move our hand through the air, but it is difficult to break through a solid due to the greater forces of attraction between molecules.
• a)Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel in which it is keptb)They have high kinetic energy and negligible force of attraction to move constantly moving with high speed in all directions. Due to this intense random motion of particles, the particles hit each other and hit the container walls with force. These collisions of the gas particles with the container walls exert pressure on the walls of the container.c)Molecules in gases are loosely packed as compared to solid molecules, which are densely packed. So we can easily break the force of attraction when we move our hand through the air, but it is difficult to break through a solid due to the greater forces of attraction between molecules.The particles of the air have large intermolecular spaces and the least force of attraction between them. On the other hand, the solid particles have a minimum amount of intermolecular space and maximum force of attraction between them. Thus, a greater amount of force is required to move the particles of solid apart. Thus, a much greater force is required to move hand through a solid block of wood.

Hope it helps

Answer 2

Answer:

a. a gas has loose molecules in it which takes up all the place it gets to Rome freely

b. the molecules of gas moves at full speed everywhere so it hits the walls of the container and gives pressure

c. we can easily move our hand in air as air has loose molecules in it whereas a solid has tight bonding in it which cannot be broken or need a karate expert to break it