During today's lessons in chemistry, we were learning about the matter! Under the topic of matter, we are casting an experiment on Particle Theory and diffusion. Particle theory is the theory that all matter is made up of heaps of very small particles, All particles in a pure substance are the same, there is a space between all particles, particles are always moving, There are attractive forces between particles and Temeprature affects the speed at which particles move. Diffusion is where you are mixing different matter particles so it moves from a high concentration to a low concentration.
AIM - To investigate the effect of temperature on the rate of defusion.
HYPOTHESIS - I think that it will defuse faster in hot water rather than cold water, as hot water moves faster compared to cold water
METHOD - We filled the 2 Petri dishes with water, one with hot water, one with cold water. we then got two pinches of potassium permanganate and tipped them into the two dishes at the same time with the same amount of the potassium permanganate to see clear results.
CONCLUSION - The potassium permanganate spread faster in the warm water compared to the cold water telling us that the potassium permanganate diffused faster in hot water.
DISCUSSION -
This was because the warm water particles were already moving fast due to the kinetic energy, and the potassium permanganate was already moving so when they met they were moving faster than the cold water, causing them to bump into each other quicker and making the potassium permanganate spread faster.
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