Steam Burn

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Ellis Song 4I
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Steam Burn

Postby Ellis Song 4I » Sat Jan 25, 2020 11:09 am

I am not clear on what Dr. Lavelle was explaining about steam burns. Can someone explain it to me?

Amanda Mei 1B
Posts: 109
Joined: Sat Aug 24, 2019 12:16 am

Re: Steam Burn

Postby Amanda Mei 1B » Sat Jan 25, 2020 11:15 am

Lavelle was explaining how getting burned by steam is more severe than getting burned by boiling water. This is because when steam (water in gas form) hits your skin, it undergoes a phase change to become a liquid. This phase change as the steam hits your skin and becomes liquid releases energy, causing damage to that spot.

VPatankar_2L
Posts: 104
Joined: Thu Jul 25, 2019 12:17 am
Been upvoted: 1 time

Re: Steam Burn

Postby VPatankar_2L » Sat Jan 25, 2020 11:21 am

Dr. Lavelle was saying that if you look at the heating curve of water, you will notice a transition between the phase changes of water. It starts off as solid ice and as it is heated, the temperature of the solid rises to form water. The transition between ice and water is called the melting point and similarly, the transition between water and water vapor is called the boiling point. The reason why steam causes severe burns is that its enthalpy of vaporization is quite high.

805291863
Posts: 100
Joined: Sat Sep 14, 2019 12:16 am

Re: Steam Burn

Postby 805291863 » Sat Jan 25, 2020 12:41 pm

Here is a graph that I think helps illustrate the point Dr. Lavelle made during lecture
Image

Izzie Capra 2E
Posts: 103
Joined: Sat Sep 07, 2019 12:19 am

Re: Steam Burn

Postby Izzie Capra 2E » Sat Jan 25, 2020 1:26 pm

Yes, I think the term he used was the enthalpy of condensation was very large (a large enthalpy to go from a vapor to a liquid), which will have a stronger and more painful effect on the skin.

Jared Khoo 1G
Posts: 107
Joined: Wed Sep 18, 2019 12:16 am

Re: Steam Burn

Postby Jared Khoo 1G » Sat Jan 25, 2020 3:08 pm

As the latent heat of vaporization is very high, the amount of energy released when steam is condensed is much higher than the amount of energy released when boiling water is cooled, therefore the burn will be much more significant.

Nuoya Jiang
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: Steam Burn

Postby Nuoya Jiang » Sat Jan 25, 2020 3:19 pm

When the steam hits your art, it releases its latent heat because it is changing its phase from a gas to a liquid.


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