मराठी

Explain Why, Diffusion Occurs More Quickly in a Gas than in a Liquid.

Advertisements
Advertisements

प्रश्न

Explain why, diffusion occurs more quickly in a gas than in a liquid.

टीपा लिहा
Advertisements

उत्तर

Diffusion occurs faster in a gas because the kinetic energy of particles in gaseous state is much higher than in liquid which makes the particles move faster. Thus, diffusion occurs easily and faster in gas particles.

In liquids, there is lesser space to move and also, the kinetic energy of particles is lower than gas particles. Collisions between the particles while moving, are more frequent between the molecules in liquids, resulting in a slower rate of diffusion.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Matter in Our Surroundings - Very Short Answers [पृष्ठ १९]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 9
पाठ 1 Matter in Our Surroundings
Very Short Answers | Q 49 | पृष्ठ १९

संबंधित प्रश्‍न

Tabulate the differences in the characteristics of states of matter.


Give reasons:

A gas exerts pressure on the walls of the container.


Give a reason for the following observation

We can get the smell of perfume sitting several metres away.


Name the physical state of matter which can be easily compressed.


Name two gases which are supplied in compressed form in homes and hospitals.


Fill in the following blank with suitable words :

At room temperature, the forces of attraction between the particles of solid substances are ....................... then those which exist in the gaseous state.


Why do gases have neither a fixed shape nor a fixed volume?


A student placed a gas jar containing air in the upside down position over a gas jar full of red-brown bromine vapours. He observed that the red-brown colour spread upwards into the jar containing air. Based on this observation, the student concluded that it is only the bromine vapour which moves up and diffuses into air in the upper jar, the air from the upper jar does not move down by diffusion into the lower jar containing bromine vapours. Do you agree with this conclusion of the student? Give reason for your answer.


The substance X normally exists in a physical state which can flow easily but does not fill its vessel completely. It also turns anhydrous copper sulphate blue. When substance X is cooled excessively, it changes into a substance Y which has a fixed shape as well as a fixed volume. If, however, the substance X is heated strongly, it changes into a substance Z which has neither a fixed shape nor a fixed volume.

  1. Name the substances (i) X (ii) Y and (iii) Z.
  2.  What is the process of conversion of X into Y known as ?
  3. At which temperature X gets converted into Y ?
  4. What is the process of conversion of X into Z known as ?
  5. At which temperature X gets converted into Z ?

Comment upon the following:-

filling a gas container


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×