B. When ocean water cools, the surrounding air: 1. cools 2. warms 3. stays the same
C. Sand in the desert is hot in the day, and cool at night. Sand must have a: 1. high specific heat 2. low specific heat
*I'm not asking you to do my homework, but I have these questions and want to know if I got them right so I'm learning this stuff the right way. I got 2, 1, 2. Am I right? Thanks!
2007-03-11 06:34:24 · 2 answers · asked by kk 2 in Science & Mathematics ➔ Chemistry
answer is 2,2,2
in the second one when water cools heat is given to surrounding thus making it warm
2007-03-11 06:40:25 · answer #1 · answered by Gunjit M 2 · 0⤊ 0⤋
A high specific heat means that the substance absorbs a great deal of energy before the temperature rises.
Water is one of the highest. The specific heat is 4.184 J / g oC.
In comparison, a metal such as aluminum has a specific heat of only 0.9. Thus aluminum would show a temperature gain over 4 times as fast as water for the same amount of heat.
Air has a much lower specific heat than water. So the air temperature must get very cold before the ocean temperature starts to drop. In this way, the ocean moderates the climate, by absorbing, or losing, a great deal of heat before changing temperature.
2007-03-11 13:40:42 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋