Lesson: Chapter 9 — Heat

Putting the chapter together 3 of 3 Reset answers

Clear all your answers?

This erases every answer in this set and starts you again at question one. Your score will be gone.

Type these four numbers to confirm:

Those numbers don't match. Look at them again and type them.

Yes, clear Keep them

Question 3

Why is a scald from steam at 100 °C worse than one from water at 100 °C?

A Steam condensing gives out its latent heat of vaporization B Steam is hotter than 100 °C C Steam is heavier than water D Water cannot burn

The right answer is the one marked above.

Steam condensing gives out its latent heat of vaporization. Both are at 100 °C; the extra heat is the latent heat.

Answer the question to continue.