Advertisements
Advertisements
प्रश्न
Give the properties of water responsible for controlling the temperature of our body.
उत्तर
Our body is almost 65% of water, and it has the property of specific heat. Due to high specific heat capacity, the presence of a large amount of water is able to modify the climate of the body and control the temperature of our body, which is warm in winter and cool in summer.
APPEARS IN
संबंधित प्रश्न
Give three factors which affect the solubility of a solid solute in a solvent.
Normally, solubility of crystalline solid increases with temperature. Does it increase uniformly in all cases? Name a substance whose solubility:
Initially increases then decreases with rise in temperature.
Select the correct gas from given options which match with the following description:
Turns lime water milky and blue litmus paper slightly pink.
Give reason for white power forms on the surface of washing soda crystals which are left exposed to the air.
Complete the following:
The solubility of a gas at constant pressure may be increased by decreasing the
Define solubility. Give the main steps with the calculations involved of the method to determine the solubility of a given salt ‘X’ in water.
From the following list of salts: Na2SO4, 10H2O, NaCl, KClO3, NaNO3, Ca(OH)2, NH4Cl, KCI, CaSO4.
State the salts whose solubility is fairly independent or slightly increases with a rise in temperature of the water.
Give the influence of temperature on the solubility of gases in water.
Washing soda and iron [III] chloride are separately exposed to the atmosphere. State
- the observations seen
- the phenomenon which occurs
- the reason for the phenomenon occurring in each case.
Would a similar phenomenon occur in case of exposure of common salt. Explain giving reasons.
The aquatic animals live more in cold regions Why?