the fact that desert sand is very hot in the day and very cold at night is evidence that sand has ....?

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the fact that desert sand is very hot in the day and very cold at night is evidence that sand has ....?

no specific heat?
a low specific heat?
a high specific heat?

2007-10-14 15:15:05 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Weather

2 answers

a low specific heat

2007-10-14 17:07:46 · answer #1 · answered by Northstar 7 · 0⤊ 0⤋

It has a specific heat - silica is used as insulation on the space shuttle, because it doesn't transfer heat well compared to metals - in a desert environment, with clear air, at night the surface loses a lot of energy due to radiative heat transfer, cooling things down - the clearer and drier the air the colder an object can get... (look up black body radiation...) Most objects left in the desert would have similar behaviors...

2007-10-14 23:11:53 · answer #2 · answered by Steve E 4 · 0⤊ 0⤋