Answer:
As the temperature of a solid, liquid or gas increases, the particles move more rapidly.
Explanation:
99 is not a prime number because it can be multiplied by itself and by other numbers
99*1
9*11
<u>Answer:</u> The experimental van't Hoff factor is 1.21
<u>Explanation:</u>
The expression for the depression in freezing point is given as:

where,
i = van't Hoff factor = ?
= depression in freezing point = 0.225°C
= Cryoscopic constant = 1.86°C/m
m = molality of the solution = 0.100 m
Putting values in above equation, we get:

Hence, the experimental van't Hoff factor is 1.21
A gas can move around freely while a solid is hard and can’t move around freely