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प्रश्न
Explain why:
Ice at zero degrees centigrade has greater cooling effect than water at 0oC.
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उत्तर
Ice at 0°C gives more cooling effect than water at 0°C because at 0°C ice absorbs 336 J per gram of energy to melt to 0°C water.
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संबंधित प्रश्न
'Water is the universal solvent'. Comment.
How is air dissolved in water different from ordinary air?
Explain the term:
Solute
State the term: (Do not give examples)
A solution where solvent is a liquid other than water.
In which of the following substances will there be
No change in mass when they are exposed to air?
Sodium chloride
Iron
Conc. sulphuric acid
Table salt
Sodium carbonate crystals
What is soap? For what is it used?
Why does the hardness of water render it unfit for use in a washing purposes.
Name the gas that:
Does not affect acidified K2Cr2O7 paper but turns lime water milky.
Select the correct answer of the following statement:
The medium of dissolution which allows the solute to dissolve in it.
What insoluble substance? Give examples.
