Advertisements
Advertisements
प्रश्न
What do you observe when :
water is boiled
उत्तर
On boiling water changes into steam (gas) physical change.
APPEARS IN
संबंधित प्रश्न
What do you understand by the change of phase of a substance?
Is there any change in temperature during the change of phase?
Name one common substance which can be easily changed from one state to another by heating or cooling.
Why does the temperature remain constant during the melting of ice even though heat is supplied continuously ?
Define 'melting point' of a substance ? What is the melting point of ice
Define the following term Melting.
Explain why, naphthalene balls kept in stored clothes in our homes disappear over a period of time.
If the temperature of an object is 268 K, it will be equivalent to :
The latent heat of fusion of ice is :
Which one of the following set of phenomena would increase on raising the temperature ?
Which of the following represent the suitable conditions for the liquefaction of gases ?
Define the following terms: Melting point
Give reasons:
Why a solid does not flow, but a liquid flows?
Fill in the blanks:
The molecules are at a greater distance in ______ compared to liquids.
Write whether the following statement is true or false:
Solids have the larger inter-molecular space
Name the phenomenon which causes the following changes:
Conversion of ice into water
Matter in any state is composed of small particles – molecules, atoms, or ions. Differentiate the terms above in Italics.
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.
Give the reason for the following:
The kinetic energy of molecules of gases is very large & of solids, the least.
Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in following case.
During the melting of solids, the inter-particles space __________.
