Science, asked by rivendell, 1 year ago

Why hot water is heavier than cold water? I know that this question is a bit relatable to the Einstein's theory of relativity but don't have a clue...​

Answers

Answered by bhuvan131
1

this is wrong question because cold water is heavier than hot water


rivendell: Question's absolutely right !
bhuvan131: no no absolutely wrong
bhuvan131: because I have referred more time about this topic
bhuvan131: question is hundred percent of 200 and 400 504 Central
rivendell: According to the theory of relativity, the “relativistic mass” of the water increases, because of the increased energy of the water molecules. That’s because of Einstein’s famous equation E = mc2 (Energy = mass multiplied by the speed of light squared). Therefore we should observe a very very small increase in the weight of the water. In this sense, hot water is (very very slightly) heavier than cold water. Actually, the term “relativistic mass” is often avoided by professional physicists.
rivendell: You may have 'referred' higher time to this topic but you definitely haven't been through quantum mechanics!
Answered by Ruhi7480
1

Hot water is lighter than the same volume of cold water, not heavier. The reason for the decrease in density as the temperature increases is that the water molecules cannot get so close together at higher temperatures. The molecules have more kinetic energy and take up more space as they move around in the liquid.


rivendell: Yes, it is true that cold bodies have relatively higher mass than their state of higher temperature of same volume. I appreciate your answer but my question was slightly different....
rivendell: According to the theory of relativity, the “relativistic mass” of the water increases, because of the increased energy of the water molecules. That’s because of Einstein’s famous equation E = mc2 (Energy = mass multiplied by the speed of light squared). Therefore we should observe a very very small increase in the weight of the water. In this sense, hot water is (very very slightly) heavier than cold water. Actually, the term “relativistic mass” is often avoided by professional physicist."
Ruhi7480: Oh ok
rivendell: ;)
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