Molecules at the surface of solid have.................energy than molecules those inside.
Correct answer: A. higher
- A. higher
- B. lower
- C. some times higher & some times lower
- D. none
Explanation
At the surface, a molecule is on one side surrounded by molecules of the same type and on the other side of another type. Therefore the net interaction force is no longer zero. So molecules at the surface of the solid have more energy than the molecules inside the solid.
Last updated
Related questions
0.5 molar solution NaOH contains:
10.0 grams of glucose are dissolved in water to make 100 cm3 of its solution, its molarity is:
A freshly prepared Fe(OH)3 precipitate is peptised by adding FeCl3 solution. The charge on the colloidal particles is due to the preferential adsorption of:
A solution of glucose (C6H12O6) is isotonic with 4 g of urea (NH2 - CO - NH2 ) per liter of solution. The concentration of glucose is :
A substance which completely destroys or reduces the activity of the catalyst is called :