(i) Define surface energy in relation to surface tension. (ii) Name t

1.	(i) Define surface energy in relation to surface tension. (ii) Name the temperature at which the density of water is maximum. (iii) Moist soil grains are pulled together. Explain.
Answer» (i) Surface Energy: The energy required to increase the surface area of the liquid by one unit is called surface energy. (ii) The temperature at which the density of water is maximum, is 4°C. (iii) Moist soil grains are pulled together due to strong forces existing between soil grains i.e. coherent forces

(i) Define surface energy in relation to surface tension. (ii) Name the temperature at which the density of water is maximum. (iii) Moist soil grains are pulled together. Explain.

Answer»

(i) Surface Energy: The energy required to increase the surface area of the liquid by one unit is called surface energy.

(ii) The temperature at which the density of water is maximum, is 4°C.

(iii) Moist soil grains are pulled together due to strong forces existing between soil grains i.e. coherent forces