Answer to Question #114713 in Physical Chemistry for Eddy

Question

1. Why is starch dust dangerous than coal dust
2. How does smudge pot protect agricultural plant from Frost
3. Aerosol slows down loss of heat by radiation. Explain?

Answer 1

Solution.

1.

Starch dust is more dangerous than coal dust, since the dispersion of starch dust is greater than coal dust. And, therefore, the probability of a fire due to starch dust is higher.

2.

A dirty pot is a protector of plants from frost, as due to the burning of oil, a layer of warm air is formed, which protects plants from frost and reduces heat loss.

3.

Due to the small size of the dispersed phase in the aerosol, heat energy is not released into the environment, but is quickly transferred from one particle to another. Thus, there is no heat loss.

Answer:

1.

Starch dust is more dangerous than coal dust, since the dispersion of starch dust is greater than coal dust. And, therefore, the probability of a fire due to starch dust is higher.

2.

A dirty pot is a protector of plants from frost, as due to the burning of oil, a layer of warm air is formed, which protects plants from frost and reduces heat loss.

3.

Due to the small size of the dispersed phase in the aerosol, heat energy is not released into the environment, but is quickly transferred from one particle to another. Thus, there is no heat loss.