Question

What produce particles more sever burns boiling water or steam? Explain.​

Answer 1

Answer:

Explanation:

Steam will produce more severe burns than boiling water because steam has more heat energy than water due to its latent heat of vaporisation. Steam and boiling water can exist at varying temperatures but it is only correct to assume here that both are at the same temperature. But the same temperature at the source does not assure that they will have the same temperature when they contact the skin. Steam contains more heat, in the form of latent heat, than boiling water. So when steam comes in contact with skin it gives out 22.5 X 10⁵ joules per kilogram more heat than boiling water, so steam causes more severe burns.

Answer 2

Answer:

“Boiling water” complicates the answer a little because there is steam being produced in water that at sea level is boiling at 212 degrees F., and both forms of which are present in an unpressurized container at 212 degrees F.

The heat of vaporization of water is 533 calories/gram of water. That means that steam at 212 degrees F. has quite a lot more of heat available to burn skin than water, even boiling water, at the same temperature because as gaseous steam reverts to water, the heat that such a condensation process releases is high compared to the heat loss (about half a calorie) when the temperature of water simply decreases from 212 degrees F. to 211 degrees F.

Let us assume that scalding occurs at about 130 degrees F. (although skin scalding by water can be defined as 150 degrees F. occurring for a much shorter period of time). That amounts to a 82 F. degrees drop in temperature and a release of 41 calories, about 7.7% of the heat of vaporization at 533 calories/gram of water.

You do not want to be burned by steam.

And, if the steam is being released onto skin is under pressure with an attendant higher temperature of the steam, even though the specific heat of steam is only about half that of water, the higher temperature of that pressurized steam just makes the burn more severe.

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