Advertisements
Advertisements
प्रश्न
Give the reason for the following:
The kinetic energy of molecules of gases is very large & of solids, the least.
उत्तर
The Kinetic Energy of molecules of gases is very large because:
-
- The inter-particle space between the particles is maximum.
- The Inter-particle attraction between the particles is negligible. Whereas the kinetic energy of molecules of solids is least.
The Kinetic Energy of molecules of solids is the least because:
- The Inter-particle space between the particles is minimum.
- The Inter-particle attraction between the particles is very strong.
APPEARS IN
संबंधित प्रश्न
What is the physical state of water at 25°C.
Name one property which is shown by ammonium chloride but not by sodium chloride.
Fill in the following blank with suitable words :
When steam condenses to form water, heat is .......................
Match the following:
| Column A | Column B |
| (a) Evaporation of water | (i) Non-periodic change |
| (b) Milk turning sour | (ii) Periodic change |
| (c) Earthquake | (iii) Chemical change |
| (d) Change of seasons | (iv) Physical change |
| (e) Glowing of bulb | (v) Reversible change |
State the three effects of heat on matter
Define the following terms: Liquefaction
Why does a candle become smaller on burning with time?
Fill in the blanks:
The molecules are at a greater distance in ______ compared to liquids.
Fill in the blanks with the correct words of the statement given below:
During sublimation, a solid on heating turns directly into _________ and on cooling back to __________.
Select the correct answer from A, B, C, D & E for the statement given below:
The state of matter which has ___________ least density & no free surfaces.
