When we will pour tea power in the normal water the colour does not change but when the tea power is in boul water it changes its colour. Give reason for the answer( word should be easy pls)
Answers
Answer:
What you will need
A stopwatch/timer (most mobile phones have them on now)
A piece of white paper
A pen
3 clear glass or plastic cups (you are going to add hot water, so not thin ones that could crack)
Circle, triangle and pyramid tea bags
Thermometer or kettle
tea
Method
1. On the piece of white paper draw a cross with a marker pen
2.Place the glass over the cross
3. Add the circle bag
4. Boil water from the kettle and measure out 150ml (if you have a thermometer you can improve reliability by keep the temperature constant)
5. Pour over the teabag and start the stop watch
6. Time how long it takes for the cross to disappear
Investigating Teabags Science Sparks Diffusion
7. Repeat with the pyramid and square bag.
8. To make the investigation results more accurate repeat with each teabag three times.
Record your results in a table
Investigating teabags Multiple Mummy
Results explained
So which teabag was quicker?
You should find that the pyramid teabag was the quickest.
Why do you think this is?
As the water is added to the teabag it causes the tea leaves to move and triggers diffusion of the leaves. Diffusion is defined as the movement of a substance from an area of higher concentration to an area of lower concentration. There are lots of tea molecules in the bag and none outside. The leaves themselves can’t pass through the bag but their smaller particles containing colour and flavour can (the teabag itself acts as the partially permeable membrane). The addition of heat (from the hot water) to the tea bag causes its molecules to move much faster than at room temperature. This energy is more readily released in a shorter period of time than a tea bag filled with room temperature or cold water. The teabag shape affects the surface area and the pyramid due to it 3D shape provides more sides for diffusion to take place and more area in the middle for the tea molecules to move around in spreading the stain of colour.
Brain list me
Explanation:
In high temperatures, the molecules in a liquid tends to hit one another resulting in a rapid reaction. Hence when the reactions are faster, the solute (tea powder), when it is put up with the solute (water)/(milk) it get mixed thoroughly and gets dissolved.
As a result the solute and the solvent produces a new mixture in the form of solution which we call as tea.
This would help you