2007-08-14 10:23:54 · 8 answers · asked by Ammy 6 in Science & Mathematics ➔ Physics
Dry ice can not melt since it is frozen Carbon dioxide. That is why it is called 'dry' ice because it leaves no liquid residue. It turns into water as it heats up.
I am sure there is some absorption of microwaves. However I am not sure that it is enough to cause the block to turn into gas before the microwave is burned out. An explosion could occur if the absorption occurs inside the dry ice block but if the absorption is near the surface then it will simply turn into gas in layers.
The microwave will probably not throw sparks before its element (a transmission antennae) or the other working parts burn up. Most microwaves used in these types of experiments simply stop working. At least the ones in my I am experienced with never threw sparks.
My students have burned up one or two in the years I have been teaching science.
2007-08-15 10:32:38 · answer #1 · answered by Jeff Sadler 7 · 1⤊ 1⤋
Dry Ice Microwave
2016-12-12 19:08:38 · answer #2 · answered by villalobas 4 · 0⤊ 0⤋
Your microwave won't like it. The kitchen microwaves are tuned to a frequency the water absorbs at since all our food contains a high percentage of water. The microwaves excite rotational motion in the water molecules and that motion is damped by essentially frictional forces that convert the energy into heat, thus cooking the food. Dry ice is CO2 and unless this molecule has and absorption band that ovelaps the microwave oven's frequency, the microwaves will pass through the dry ice as if it weren't there. I've heard that micorwave ovens don't like to be run without water or food in them so the sparks should be amusing until the oven dies.
2007-08-14 10:32:21 · answer #3 · answered by nyphdinmd 7 · 5⤊ 3⤋
My guess is that the block will blow up. I think there is still come absorption of the MW energy in the solid CO2, and that the energy will be released non-uniformly in the bulk dry ice... Meaning somewhere the solid will start evaporating into gas, and that means kaboom.
2007-08-14 10:44:06 · answer #4 · answered by stopwar11112 3 · 0⤊ 3⤋
Maybe you should get yourself a microwave and test it at a safe distance.
2007-08-14 10:41:19 · answer #5 · answered by Anonymous · 1⤊ 2⤋
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2016-04-11 00:38:13 · answer #6 · answered by Kathryn 4 · 0⤊ 0⤋
idk....thats a interesting question though. [i think it would melt]
2007-08-15 04:52:06 · answer #7 · answered by Maximum Ride 3 · 0⤊ 1⤋
It wil melt?
2007-08-14 10:31:10 · answer #8 · answered by Anonymous · 0⤊ 5⤋