Explain the following in terms of the effect of heat on the particles.
(a) The level of water in a pond near your house has reduced during the summer season.
(b) You can smell food being cooked in the kitchen even when you are in the other room.
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a) The answer would be different for both a well and a pond. There are several reason why the water level can drop in a well. ... As temperatures rise, the water will begin to evaporate and if there is little to no rain during the summer months, the wells water can not be replenished.
b) There is a phenomenon called Diffusion. In diffusion, molecules of solid, liquid or gas spread from the region of their higher concentration to the region of their lower concentration. ... By diffusion, the smell spreads to the whole room and thereby whole house, so anyone standing at a distance, Can smell it.
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