what do you conclude from this activity chemistry 9 th class activity 5
Answers
Answer:
This one or i will change answer
Explanation:
Drop a crystal of copper sulphate or potassium permanganate into a glass of hot water and another containing cold water. Do not stir the solution. Allow the crystals to settle at the bottom.
What do you observe just above the solid crystal in the glass?
What happens as time passes?
What does this suggest about the particles of solid and liquid?
Does the rate of mixing change with temperature? Why and how?
Solution :
Solid crystals starts mixing in the water in the form of thread like structures.
Coming of thread like structures in cold water is slower than that of in the hot water.
As time passes, crystal getting dissolved in water both hot and cold.
But it takes more time to get crystal dissolved in cold water than that of hot water.
This suggest that, matters are made up of tiny particles and these particles are in motion continuously.
Rate of mixing increases with increase in temperature. This is because of heat particles of matter gets more kinetic energy and they starts moving faster.
Please mark me as brain list
BY Tolety Roshan