Advertisements
Advertisements
प्रश्न
Why students can read blackboard written by chalks?
उत्तर
When we write on a blackboard using chalk, the chalk particles get adsorbed on the surface of the blackboard. Hence, students can read blackboard written by chalks.
APPEARS IN
संबंधित प्रश्न
Define adsorption.
Aqueous solution of raw sugar, when passed over beds of animal charcoal, becomes colourless. Explain.
Explain the Adsorption is a surface phenomenon.
A graph is plotted between log (x/m) and log P according to the equation `x/"m" - "kP"^(1/"n")`
Which of the following statements about this graph is not correct?
Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?
For adsorption of gas over solid surface following data is obtained at 300 K.
| Pressure of gas (mm of Hg) |
100 | 25 |
| Amount adsorged per kg of charcoal |
3 gm | 1.5 gm |
The slope of the graph between log P vs log x/m will be ______.
[x/m and P are in same units as given in question.]
The process by which sites of adsorbent are made free so, that more adsorbent can occupy them is called ______.
