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(a) in an experiment, cold water is poured into a bowl made of an insulating material, the container is placed in a draught-free
Question
(a) in an experiment, cold water is poured into a bowl made of an insulating material, the container
is placed in a draught-free room. After several hours, the volume and the temperature of the
water are found to have decreased.
Name and describe the process that causes the decrease in the volume of the water, and
explain why the temperature of the water decreases.
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Physics
3 years
2021-07-25T23:46:44+00:00
2021-07-25T23:46:44+00:00 1 Answers
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Answers ( )
Answer: Evaporation and heat loss to the surrounding.
Explanation:
The process is known as evaporation.
Evaporation takes place at any temperature but increases with increase in temperature. The molecules of water evaporate, that is, escape into the atmosphere thereby causing the volume of water to reduce.
The temperature decreases due to heat loss from the water into the surrounding. This will cause the temperature of the water to drop.