Question

1. with the help or a diagram, show that diffusion becomes faster with increase in temperature,
22. What is precipitate? Why is it formed?
23. Why does the temperature of a substance remain constant during its melting or boiling?
24. Lysosomes are known as the suicide bags of the cell. Give reason.
25. Why evaporation is called surface phenomenon?
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Answer 1

Answer:

Evaporation is known as surface phenomena because molecules of water present on the surface of liquid are bonded weakly as compaered to inner molecules and when temperature increases hydrogen bonding between water molecules breaks.Due to this water molecules tend to evaporate.so that's why it is called as surface phenomenon

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