Particle ModelIntroduction

Why Steam Burns Worse Than Boiling Water

Part of Specific Latent HeatGCSE Physics

This introduction covers Why Steam Burns Worse Than Boiling Water within Specific Latent Heat for GCSE Physics. Revise Specific Latent Heat in Particle Model for GCSE Physics with 13 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 1 of 12 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 1 of 12

Practice

13 questions

Recall

30 flashcards

📖 Why Steam Burns Worse Than Boiling Water

Here's a painful truth: getting scalded by steam at 100°C causes FAR worse burns than boiling water at 100°C. Same temperature — so why the difference? Because steam carries "hidden" energy — the energy that was needed to turn water into steam. When steam touches your skin and condenses back to water, all that hidden energy DUMPS into you. The word "latent" literally means "hidden" — it's energy stored in the state change itself, invisible to thermometers!
Specific Latent Heat Equation (ON FORMULA SHEET)
E = m × L
Energy (J) = mass (kg) × specific latent heat (J/kg)

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Read this section alongside the surrounding pages in Specific Latent Heat. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Specific Latent Heat

What is specific latent heat?

  • A. The energy needed to raise 1 kg of a substance by 1 °C
  • B. The energy needed to change the state of 1 kg of a substance without changing its temperature
  • C. The temperature at which a substance changes state
  • D. The rate of energy transfer during a state change
1 markfoundation

During a state change, energy is being supplied to a substance but the temperature does not change. Explain where this energy goes.

2 marksstandard

Quick Recall Flashcards

Latent heat equation
E = mL
What is latent heat?
Energy needed to change state without changing temperature. 'Latent' = hidden.

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