Heating Curve for Water - Steam

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Katie Kyan 2K
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am
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Heating Curve for Water - Steam

Postby Katie Kyan 2K » Wed Jan 29, 2020 3:33 pm

Can anyone explain to me why steam causes severe burns? Is it because the phase change from liquid to vapor requires a lot of heat to be supplied resulting in a large enthalpy?

Hui Qiao Wu 1I
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Heating Curve for Water - Steam

Postby Hui Qiao Wu 1I » Wed Jan 29, 2020 3:37 pm

Yes, you are correct. Phase change requires a lot of energy in the form of heat, that energy is so great that when it is released (touches skin), it causes severe burns.
Last edited by Hui Qiao Wu 1I on Wed Jan 29, 2020 3:42 pm, edited 1 time in total.

Kayli Choy 2F
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: Heating Curve for Water - Steam

Postby Kayli Choy 2F » Wed Jan 29, 2020 3:38 pm

Essentially, water requires requires a large heat input (large heat of vaporization) in order to vaporize, so the steam absorbs that heat energy, causing it to burn more than just boiled water at 100 degrees. The water does not have that additional heat that the steam has because energy has been inputed in order to change the phase.

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