Q35 of 160 Page 36

Which produces more severe burns: boiling water or steam? Why?

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.


More from this chapter

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33

Which contains more heat, 1 kg of water at 100°C or 1 kg of steam at 100°C? Give reason for your answer.

 34

Explain why, steam at 100°C is better for heating purposes than boiling water at 100 �C.

 36

Why does the temperature of a substance remain constant during the change of state?

 37

What is the physical state of water:

(a) at 0°C? (b) at 25°C


(c) at 100°C (d) at 250°C