Download App

Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
What does the diffusion of gases tell us about their particles?
✓

Answer

Diffusion in gases shows that their particles move very quickly in all directions and the rate of diffusion of a gas depends on its density. Light gases diffuse faster than heavy gases.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 2 Mark )" from Matter in Our Surroundings→Matter in Our Surroundings — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Differentiate between RER and SER.
→
Distinguish between xylem and phloem.
→
The volume of $50\ g$ of a substance is $20\ cm^3$. If the density of water is $1\ g\ cm ^{-3}$, will the substance float or sink$?$
→
The density of gold is $19\ g/cm^3.$ Find the volume of $95\ g$ of gold.
→
What is the location of following in the cell:
  1. Chromatin.
  2. Chromosome.
  3. Tonoplast.
  4. Nucleolus.
→
A man $X$ goes to the top of a building by a vertical spiral staircase. Another man $Y$ of the same mass goes to the top of the same building by a slanting ladder. Which of the two does more work against gravity and why$?$
→
$9.72g$ of potassium chloride dissolves in $30g$ of water at $70^\circ C.$ Calculate the solubility of potassium chloride at that temperature.
→
Joseph jogs from one end A to the other end B of a straight 300m road in 2 minutes 30 seconds and then turns around and jogs 100m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging (a) from A to B and (b) from A to C?
→
What do you think would be the observation if the α-particle scattering experiment is carried out using a foil of a metal other than gold?
→
What is the cause of buoyant force?
→