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प्रश्न
Give two examples for of the following
Substances which sublime.
उत्तर
Naphthalene, camphor, dry ice.
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संबंधित प्रश्न
Evaporation of a liquid causes cooling.
Boiling takes place at all temperatures.
At high altitudes, water boils above 100° C.
Write true or false For the following Statement
The molecules in a substance arc in random motion.
Fill in the blank
The inter-molecular spacing is .......... in solids ........... in liquids and ............... in gases.
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Give a reason for the Pure substances have fixed melting or boiling points.
Fill in the blank
Liquids have a definite ............
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Write true or false for the statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
