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प्रश्न
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
विकल्प
True
False
उत्तर
False
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संबंधित प्रश्न
Differentiate between the following.
Liquids and gases .
Write whether the following statement are true or false.
All solids, on heating, first change to the liquid and then to the gaseous state always.
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What is the approximate size of a molecule?
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
What are fluids? Give two examples.
Write your observation and conclusion for the following:
When one of the balloons suspended to the metre scale is punctured while other remains inflated?
Give reason :
A gas fills up the space available to it.
Give reason :
A red ink drop added to a small amount of water in a glass turns water red in some time.
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
