Steam vs Boiling Water

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Kyleigh Follis 2H
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Steam vs Boiling Water

Postby Kyleigh Follis 2H » Tue Feb 12, 2019 9:22 pm

Why does steam at 100 degrees celsius cause a worse burn than boiling water at 100 degrees celsius?

julia_lok_2K
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Re: Steam vs Boiling Water

Postby julia_lok_2K » Tue Feb 12, 2019 9:28 pm

It's because the steam has more heat energy than boiling water, i.e. higher enthalpy.

Luc Lorain 1L
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Re: Steam vs Boiling Water

Postby Luc Lorain 1L » Wed Feb 13, 2019 2:15 am

As we boil water, it remains at a constant temperature (100 degrees C) until all liquid water has completed its phase change to gas. However, although Temperature remains constant, we continue to increase heat in the system throughout the entire process. Therefore, all steam produced through boiling contains much more heat than the water at the beginning of the boiling process.

Xingzheng Sun 2K
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Re: Steam vs Boiling Water

Postby Xingzheng Sun 2K » Thu Feb 21, 2019 12:32 am

Because the process of boiling water intakes energy, and when it becomes steam, the steam has more heat than water.

Jack Hewitt 2H
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Re: Steam vs Boiling Water

Postby Jack Hewitt 2H » Tue Mar 05, 2019 2:16 pm

Because the steam has more heat and therefore a higher enthalpy.

Alexa Tabakian 1A
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Re: Steam vs Boiling Water

Postby Alexa Tabakian 1A » Tue Mar 05, 2019 2:24 pm

Steam has a higher enthalpy because it takes more energy and heat to keep it as a gas. Therefore, it causes worse burns.

Vicky Lu 1L
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Joined: Fri Sep 28, 2018 12:18 am

Re: Steam vs Boiling Water

Postby Vicky Lu 1L » Tue Mar 05, 2019 4:57 pm

Steam has a greater amount of energy, and therefore heat, as it has both the heat energy of boiling water and latent heat of vaporization in comparison to just boiling water which is just the energy required to boil water.

Mark 1D
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Re: Steam vs Boiling Water

Postby Mark 1D » Mon Mar 11, 2019 7:59 pm

greater enthalpy and therefore more heat in steam

Pritish Patil 1K
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Re: Steam vs Boiling Water

Postby Pritish Patil 1K » Tue Mar 12, 2019 1:15 pm

Steam has more heat energy (q), causing a worse burn. This is because it takes a certain amount of energy to execute the phase change from boiling water to steam, in which the temperature of the substance does not change, only heat energy q.


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