Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

NCERT CLASS IX - Science Textbook

Chapter 1 - Matter in Our Surroundings

Give reasons:

(a) A gas fills completely the vessel in which it is kept.



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
     Particles in a gas  called molecules, are free to move in all directions.  They move at very high speeds.  They have very little attraction forces among themselves.

    These molecules have tendency to randomly move everywhere.  The property that a gas occupies all space available to it is called diffusion.    Thus any gas occupies the entire volume of the container in which it is present.

   The gas molecules are reflected from the walls of the container.
1 5 1
please click on thanks blue button above
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts