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प्रश्न
Evaporation of a liquid causes cooling.
पर्याय
True
False
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उत्तर
True.
APPEARS IN
संबंधित प्रश्न
Ice melts at 100°C.
Evaporation takes place over the entire mass of the liquid.
Evaporation takes place at ...............temperature.
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.
Give a reason for the Pure substances have fixed melting or boiling points.
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
The molecules move only within the boundary of
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?
Gas like the state of Matter that exists at extremely cold temperatures used in the field of cryogenics.
