take (i)a beaker full of water,(ii)a beaker full of sand and (iii) a closed bottle containing a thermometer.keep them in bright sunlight for 3 hours.now measure the temperature of all 3 vessels.also take the temperature reading in shade at the same time.
2007-01-26 17:32:05 · 4 answers · asked by Shruti 1 in Science & Mathematics ➔ Chemistry
Think about the weather of San Francisco as opposed to the weather in the desert. The desert (which is very dry) gets very hot during the day and cools off quickly at night. San Francisco (which is surround by water and moisture) has a much more mild temperature influx during the course of a day.
That's because water has a very high specific heat. It takes more energy to heat water than it does to heat sand. So, to answer your question, the sand would be warmer than the water, and really the temperature inside the bottle would depend on what's inside the thermometer, what the bottle is resting on, and the specific heat of the material the bottle is made of.
2007-01-26 20:45:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Key here is water is a better conductor of heat than sand. Sand is a poor conductor of heat. Air is a poor conductor of heat. Water is so much better. Take a look in your physics book, for the SPECIFIC HEAT of these substances and you will see the huge differences.
The answer is (1)
2007-01-27 03:32:44 · answer #2 · answered by James M 6 · 0⤊ 0⤋
its about convection, conduction and radiation modes of heat transfer.
the empty will heat quicky followed by water and the last to heat would be sand, but when brought in shade the first where temp. falls is in the same order as that of acquiring heat
2007-01-27 01:51:25 · answer #3 · answered by blitzkrieg_hatf6 2 · 0⤊ 0⤋
i'm pretty sure sand. because for the temp. vs. energy thing for water is pretty high. that's why water heated in the microwave will heat slower than the mug you put it in. make sense?
2007-01-27 01:50:16 · answer #4 · answered by lalalalalala 2 · 0⤊ 0⤋