And also how can you determine the percent of water by mass in popcorn? Does the mass of the kernel decrease or increase?
I'm thinking you have to measure the before and after, but how do I know that it's the mass of the water. About the second question, I think it will decrease, because it looses its water. Am I right about this?
2007-09-11 16:32:39 · 14 answers · asked by Anne 2 in Science & Mathematics ➔ Chemistry
chemicals..
2007-09-11 16:37:28 · answer #1 · answered by Felix 7 · 0⤊ 0⤋
There is a small amount of liquid in the popcorn that heats up and turns to steam creating am small explosion from the build up of steam. This is just my thought here, but I think the more water makes it take longer to pop, but makes a bigger piece of popcorn, and I think the amount though will be less because the water was taking up space in the kernel.
2007-09-11 16:37:53 · answer #2 · answered by Saskatoon resident 1 · 0⤊ 0⤋
The moisture trapped in the kernel turns to steam rapidly. The mass would decrease with the loss of water. To determine the percentage you would have to find the weight by volume of a completely dry, un-poppable, kernel. In order to find the weight by volume difference with a kernel containing the proper percentage of water.
2007-09-11 16:44:15 · answer #3 · answered by phil8656 7 · 0⤊ 0⤋
the heat causes the water to turn into gas and the particles of that gas to expand causing the kernel to turn itself inside out you will find the mass of water lost by measuring the kernel before popping and after and the decrease in mass will be the amount of water lost
2007-09-11 16:40:25 · answer #4 · answered by mark c 2 · 0⤊ 0⤋
The rapid expansion of water vapor (from the heated moisture content of the corn). The vapor is trapped within the hard shell, and then it escapes explosively.
2007-09-11 16:41:08 · answer #5 · answered by skipper 7 · 0⤊ 0⤋
The water in the kernal when heated turns into steam and bursth kernal open to become a popped corn..
2007-09-11 16:38:56 · answer #6 · answered by DrB 7 · 0⤊ 0⤋
um the heat makes it pop and yea use some common sense of course it looses mass use a digital scale to prove it if ya want
2007-09-11 16:39:27 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Steam
2007-09-11 16:36:40 · answer #8 · answered by Dolphin 4 · 1⤊ 0⤋
you ARE right about the loss of watter
but the actual mass of the popcorn is still the same
2007-09-11 16:36:56 · answer #9 · answered by aznhobo4 2 · 0⤊ 0⤋
moisture inside the kernel boils, turns to steam, and explodes because of the PVT laws.
Kent in SD
2007-09-11 16:37:30 · answer #10 · answered by duckgrabber 4 · 0⤊ 0⤋
moisture inside heat outside heat makes things expand POP
2007-09-11 16:38:28 · answer #11 · answered by thetiltster 4 · 0⤊ 0⤋