Steam vs liquid

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Jessica Esparza 2H
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Joined: Wed Sep 18, 2019 12:15 am

Steam vs liquid

Postby Jessica Esparza 2H » Thu Jan 23, 2020 4:01 pm

I got a little confused on Professors explanation of why steam causes a worse burn than boiling water, can anyone explain?

Jack Riley 4f
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Joined: Sat Aug 24, 2019 12:17 am

Re: Steam vs liquid

Postby Jack Riley 4f » Thu Jan 23, 2020 4:05 pm

Steam has more heat energy due to the fact that that energy was inputted in order to vaporize the H2O.

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Re: Steam vs liquid

Postby KeyaV1C » Thu Jan 23, 2020 4:06 pm

When water goes from gas to liquid it undergoes a phase change which requires a lot more energy than just a temperature change. When steam hits your skin, a lot of energy will be released as it condenses. This energy causes a much worse burn than if the same amount of boiling water were to hit your skin.

Sydney Myers 4I
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Re: Steam vs liquid

Postby Sydney Myers 4I » Thu Jan 23, 2020 4:56 pm

Water can only hold so much energy until it is converted to steam, but once it has been converted, it has the capability to hold much more energy, making the burn worse.

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Re: Steam vs liquid

Postby Uisa_Manumaleuna_3E » Thu Jan 23, 2020 7:09 pm

It helps for me to understand why steam burns more than liquid water if I remember the graph he showed us in class. I think everyone else did a fantastic job already of explaining it, but when dealing with the phase changes, at least for me, it helped seeing the comparison of energy change water underwent from vapor to liquid compared to that of liquid alone. If you can see how (for water) there is more energy required for this phase change, it makes sense why the burn is more severe.

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Re: Steam vs liquid

Postby 305385703 » Thu Jan 23, 2020 8:02 pm

Although steam and water may both be at 100 degrees C, the steam will give you more of a burn. Both steam and water will want to reach an equilibrium with whatever is being burned, eventually reaching 25 degrees. However, the energy given off by steam on its way to this temperature is much greater than that of water. This is because steam has much more energy per molecule than water.

Leonardo Le Merle 1D
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Re: Steam vs liquid

Postby Leonardo Le Merle 1D » Fri Jan 24, 2020 12:27 pm

It should be added that when steam condenses on skin it adds to the amount of energy; it’s the joules from the phase change that releases so much energy.

Elizabeth Harty 1A
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Re: Steam vs liquid

Postby Elizabeth Harty 1A » Fri Jan 24, 2020 1:48 pm

Water has a very high vapor energy.

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