EASY
9th CBSE
IMPORTANT
Earn 100

Is dry ice the same thing as ordinary ice?

Important Questions on Matter in Our Surroundings
EASY
9th CBSE
IMPORTANT
What is the common name of solid carbon dioxide?

EASY
9th CBSE
IMPORTANT
State one condition necessary to liquefy gases (other than applying high pressure).

MEDIUM
9th CBSE
IMPORTANT
Give one use of dry ice.

EASY
9th CBSE
IMPORTANT
What are the conditions required for the conversion of one state of matter to the other state?

MEDIUM
9th CBSE
IMPORTANT
What are the two ways in which the physical state of matter can be changed?

MEDIUM
9th CBSE
IMPORTANT
Define latent heat of fusion. How much is the latent heat of fusion of ice?

MEDIUM
9th CBSE
IMPORTANT
For any substance, why does the temperature remain constant during the change of state?

MEDIUM
9th CBSE
IMPORTANT
Under what conditions heat can be given to a substance without raising its temperature?
