Download App

Matter in Our Surroundings — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
Explain why, diffusion occurs more quickly in a gas than in al iquid.
✓

Answer

Diffusion occurs more quickly in gases than in a liquid because the particles in gases move very quickly in all directions whereas the particles in liquids move slowly as compared to the gas particles.

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 "Answer the questions.[Che-2M]" from Matter in Our Surroundings→Matter in Our Surroundings — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

What is the difference between colloids and suspensions?
→
How was it shown that an atom has a lot of empty space within it?
→
What is the difference between colloids and suspensions?
→
The atomic number of an element X is 16.
What will be the valency of X?
→
Explain why, a small volume of water in a kettle can fill a kitchen with steam.
→
Name the three states of matter. Give one example of each.
→
Calculate the molecular masses of H2 , O2 , Cl2 , CO2 , CH4 , C2H6 , C2H4 , NH3 , CH3OH.
→
Give postulates of Dalton's atomic theory.
→
If 100g of calcium carbonate on heating produces 44g of carbon dioxide, how much quick lime will be formed? Which law is followed for solving this problem?
→
Classify the following materials as homogeneous mixtures and heterogeneous mixtures:
Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.
→